# List of Stuff You Should Know episodes

Stuff You Should Know is a free podcast and video series published by HowStuffWorks and hosted by Josh Clark and Charles W. "Chuck" Bryant, both writers at HowStuffWorks. The podcast educates listeners on a wide variety of topics, often using popular culture as a reference giving the podcast comedic value. Episodes are normally around 45 minutes in length, although for more in-depth topics the show has run longer than an hour.
The winner of the 2014 and the 2016 People's Voice Webby Award, the show is downloaded more than 1 million times per week and is consistently on iTunes’ Top 10 podcast rankings. Stuff You Should Know's "beautifully, beautifully done" production has set "the audio standard," according to podcast reviewers Pod on Pod. They added that the audio quality "could not be improved" on the NPR-level production. One reviewer said of it: "It is never not fun to listen to."
Since 2014, a listener and fan, dubbed The Minister of Stats by Clark and Bryant, has maintained a spreadsheet listing all episodes with original publishing dates, run times, and fun facts. Short Stuff and Selects episodes do not contribute to the overall episode count.

## Series overview

| Year | Average length | Longest episode | Shortest episode |
| Overall | 41 minutes | "How LSD Works" (106 minutes) | "How Evolution in Isolation Works" (4 minutes) |
| 2020 | 54 minutes | "How COVID-19 Works" (71 minutes) | "Short Stuff: Hawaiian Night Marchers" (11 minutes) |
| 2019 | 54 minutes | "Guardian Angels: Behind the Red Beret" (105 minutes) | "Short Stuff: Unspent Campaign Money" (13 minutes) |
| 2018 | 63 minutes | "SYSK Live: Back When Ford Pintos Were Flaming Deathtraps" (80 minutes) | "Short Stuff: Unique Snowflakes" (14 minutes) |
| 2017 | 55 minutes | "SYSK Live: The DB Cooper Heist" (95 minutes) | "SYSK Selects: How Exorcism Works" (24 minutes) |
| 2016 | 49 minutes | "How LSD Works" (106 minutes) | "Living Underground in Beijing" (32 minutes) |
| 2015 | 46 minutes | "Live in Chicago: How Public Relations Works" (77 minutes) | "Rainbows: Delighting humanity since forever" (32 minutes) |
| 2014 | 44 minutes | "How Police Interrogation Works" (67 minutes) | "How Leper Colonies Worked" (30 minutes) |
| 2013 | 36 minutes | "How Dying Works" (64 minutes) | "How Alien Hand Syndrome Works" (15 minutes) |
| 2012 | 37 minutes | "Why does music provoke emotion?" (64 minutes) | "What is a shotgun house?" (23 minutes) |
| 2011 | 36 minutes | "What Saved the American Bison" (54 minutes) | "How Tickling Works" (21 minutes) |
| 2010 | 32 minutes | "SYSK's Guatemalan Adventure, Part One" (55 minutes) | "How Scabies Work" (20 minutes) |
| 2009 | 25 minutes | "The Real How Jack the Ripper Worked" (39 minutes) | "How Hypoallergenic Cats Work" (15 minutes) |
| 2008 | 11 minutes | "Did the CIA test LSD on unsuspecting Americans?" (26 minutes) | "How Evolution in Isolation Works" (4 minutes) |
As of 31 December 2020

## Episodes
### 2017

| No. in series | No. in season | Title | Length | Original air date |
| 917 | 1 | "How Feeding Babies Works: The Breast" | 71 minutes | January 3, 2017 (2017-01-03) |
| 918 | 2 | "How Feeding Babies Works: The Bottle" | 73 minutes | January 5, 2017 (2017-01-05) |
| 919 | 3 | "What's the deal with Baby Boomers?" | 52 minutes | January 10, 2017 (2017-01-10) |
| 920 | 4 | "How Watersheds Work" | 32 minutes | January 12, 2017 (2017-01-12) |
| 921 | 5 | "Are Artificial Sweeteners Really Bad For You?" | 59 minutes | January 17, 2017 (2017-01-17) |
| 922 | 6 | "How Soylent Works" | 44 minutes | January 19, 2017 (2017-01-19) |
| 923 | 7 | "How Dictators Work" | 48 minutes | January 24, 2017 (2017-01-24) |
| 924 | 8 | "How Pacifism Works (And Could It?)" | 75 minutes | January 26, 2017 (2017-01-26) |
| 925 | 9 | "Elastics: Where God and Science Smooch" | 54 minutes | January 31, 2017 (2017-01-31) |
| 926 | 10 | "What's the future of virtual sex?" | 58 minutes | February 2, 2017 (2017-02-02) |
| 927 | 11 | "The Quinoa Revolution!" | 46 minutes | February 7, 2017 (2017-02-07) |
| 928 | 12 | "Live from San Francisco: How Malls Work" | 68 minutes | February 9, 2017 (2017-02-09) |
| 929 | 13 | "Tardigrades: Nature's Cuddly, Indestructible Microanimal" | 36 minutes | February 14, 2017 (2017-02-14) |
| 930 | 14 | "The Black Panther Party" | 67 minutes | February 16, 2017 (2017-02-16) |
| 931 | 15 | "The ins and outs of the DEATH TAX" | 52 minutes | February 21, 2017 (2017-02-21) |
| 932 | 16 | "How Famines Work" | 54 minutes | February 23, 2017 (2017-02-23) |
| 933 | 17 | "How Free Speech Works" | 67 minutes | February 28, 2017 (2017-02-28) |
| 934 | 18 | "How Optical Illusions Work" | 44 minutes | March 2, 2017 (2017-03-02) |
| 935 | 19 | "History of the Trail of Tears, Part I" | 56 minutes | March 7, 2017 (2017-03-07) |
| 936 | 20 | "History of the Trail of Tears, Part II" | 46 minutes | March 9, 2017 (2017-03-09) |
| 937 | 21 | "Pain Scales: Yeeeow!" | 47 minutes | March 14, 2017 (2017-03-14) |
| 938 | 22 | "Southerners Aren’t Lazy and Dumb, They Just Had Hookworm" | 52 minutes | March 16, 2017 (2017-03-16) |
| 939 | 23 | "Solitary Confinement: Cruel and Unusual" | 51 minutes | March 21, 2017 (2017-03-21) |
| 940 | 24 | "How the Hyperloop Will Work" | 65 minutes | March 23, 2017 (2017-03-23) |
| 941 | 25 | "How Foreign Accent Syndrome Works" | 51 minutes | March 28, 2017 (2017-03-28) |
| 942 | 26 | "The Shroud Of Turin: No Ordinary Bed Sheet" | 48 minutes | March 30, 2017 (2017-03-30) |
| 943 | 27 | "Composting: Nature's Most Interesting Process" | 55 minutes | April 4, 2017 (2017-04-04) |
| 944 | 28 | "How Empathy Works" | 56 minutes | April 6, 2017 (2017-04-06) |
| 945 | 29 | "How Supreme Court Nominations Work" | 49 minutes | April 11, 2017 (2017-04-11) |
| 946 | 30 | "How Supervolcanoes Work" | 34 minutes | April 13, 2017 (2017-04-13) |
| 947 | 31 | "How Swearing Works" | 52 minutes | April 20, 2017 (2017-04-20) |
| 948 | 32 | "How the National Security Council Works" | 57 minutes | April 25, 2017 (2017-04-25) |
| 949 | 33 | "How Multiple Sclerosis Works" | 46 minutes | April 27, 2017 (2017-04-27) |
| 950 | 34 | "Some Nutso Fan Theories" | 56 minutes | May 4, 2017 (2017-05-04) |
| 951 | 35 | "How Itching Works" | 48 minutes | May 9, 2017 (2017-05-09) |
| 952 | 36 | "How Charismatic Megafauna Work" | 50 minutes | May 11, 2017 (2017-05-11) |
| 953 | 37 | "How Champagne Works" | 63 minutes | May 16, 2017 (2017-05-16) |
| 954 | 38 | "How the Aurora Borealis and Aurora Australis Work" | 46 minutes | May 18, 2017 (2017-05-18) |
| 955 | 39 | "Is a head transplant really a thing?" | 47 minutes | May 23, 2017 (2017-05-23) |
| 956 | 40 | "How Schoolhouse Rock Rocked: Featuring Bob Nastanovich of Pavement" | 65 minutes | May 25, 2017 (2017-05-25) |
| 957 | 41 | "Are Election Laws Designed to Suppress Voting?" | 73 minutes | May 30, 2017 (2017-05-30) |
| 958 | 42 | "The Stories Behind A Few Food Fads" | 51 minutes | June 1, 2017 (2017-06-01) |
| 959 | 43 | "How Coelacanths Work" | 44 minutes | June 6, 2017 (2017-06-06) |
| 960 | 44 | "Why Are Whale Strandings Still a Mystery?" | 47 minutes | June 8, 2017 (2017-06-08) |
| 961 | 45 | "How the Beagle Brigade Works" | 53 minutes | June 13, 2017 (2017-06-13) |
| 962 | 46 | "What was Camp X?" | 53 minutes | June 15, 2017 (2017-06-15) |
| 963 | 47 | "How Seed Banks Work" | 55 minutes | June 20, 2017 (2017-06-20) |
| 964 | 48 | "How Ketchup Works" | 57 minutes | June 22, 2017 (2017-06-22) |
| 965 | 49 | "Remembering Stonewall" | 59 minutes | June 27, 2017 (2017-06-27) |
| 966 | 50 | "How Standardized Patients Work" | 54 minutes | June 29, 2017 (2017-06-29) |
| 967 | 51 | "What exactly is stoicism?" | 61 minutes | July 4, 2017 (2017-07-04) |
| 968 | 52 | "Josh and Chuck's List of Horror Movies that Changed the Genre" | 64 minutes | July 6, 2017 (2017-07-06) |
| 969 | 53 | "Why is There a Battle Over Net Neutrality?" | 65 minutes | July 11, 2017 (2017-07-11) |
| 970 | 54 | "How Fever Dreams Work" | 40 minutes | July 13, 2017 (2017-07-13) |
| 971 | 55 | "Sunburn, Suntans and Sunscreen" | 52 minutes | July 18, 2017 (2017-07-18) |
| 972 | 56 | "All We Know About Guessing" | 61 minute | July 20, 2017 (2017-07-20) |
| 973 | 57 | "What is Ghost Fishing?" | 48 minutes | July 25, 2017 (2017-07-25) |
| 974 | 58 | "A Dry Look at Toilet Paper" | 56 minutes | July 27, 2017 (2017-07-27) |
| 975 | 59 | "How Public Broadcasting Works" | 60 minutes | August 1, 2017 (2017-08-01) |
| 976 | 60 | "Who Committed the 1912 Villisca Ax Murders?" | 49 minutes | August 3, 2017 (2017-08-03) |
| 977 | 61 | "Do motivational speakers motivate people?" | 54 minutes | August 8, 2017 (2017-08-08) |
| 978 | 62 | "How Bioarchaeology Works" | 58 minutes | August 10, 2017 (2017-08-10) |
| 979 | 63 | "How Stuttering Works" | 54 minutes | August 15, 2017 (2017-08-15) |
| 980 | 64 | "What's the deal with accents?" | 60 minutes | August 17, 2017 (2017-08-17) |
| 981 | 65 | "Is the Uncanny Valley Real?" | 71 minutes | August 22, 2017 (2017-08-22) |
| 982 | 66 | "How Personality Tests Work" | 60 minutes | August 24, 2017 (2017-08-24) |
| 983 | 67 | "A Lip-Smacking Look at Barbecue" | 54 minutes | August 29, 2017 (2017-08-29) |
| 984 | 68 | "How Satanism Works" | 56 minutes | August 31, 2017 (2017-08-31) |
| 985 | 69 | "The Baffling Case of the Body On Somerton Beach" | 68 minutes | September 5, 2017 (2017-09-05) |
| 986 | 70 | "Are crickets the future of food?" | 47 minutes | September 7, 2017 (2017-09-07) |
| 987 | 71 | "How Psychopaths Work" | 51 minutes | September 12, 2017 (2017-09-12) |
| 988 | 72 | "How the Secret Service Works" | 57 minutes | September 14, 2017 (2017-09-14) |
| 989 | 73 | "How Frogs Work" | 54 minutes | September 19, 2017 (2017-09-19) |
| 990 | 74 | "A Nostalgic Look at Crayons" | 56 minutes | September 21, 2017 (2017-09-21) |
| 991 | 75 | "How FOIA Works" | 54 minutes | September 26, 2017 (2017-09-26) |
| 992 | 76 | "How Nude Beaches Work" | 49 minutes | September 28, 2017 (2017-09-28) |
| 993 | 77 | "How Police Body Cameras Work" | 48 minutes | October 3, 2017 (2017-10-03) |
| 994 | 78 | "How Giraffes Work" | 57 minutes | October 5, 2017 (2017-10-05) |
| 995 | 79 | "How the Rolling Jubilee Works" | 50 minutes | October 10, 2017 (2017-10-10) |
| 996 | 80 | "How Buildering Works" | 50 minutes | October 12, 2017 (2017-10-12) |
| 997 | 81 | "SYSK Live: The DB Cooper Heist" | 95 minutes | October 17, 2017 (2017-10-17) |
| 998 | 82 | "How Internships Work" | 42 minutes | October 19, 2017 (2017-10-19) |
| 999 | 83 | "Episode 999: The Simpsons Spectacular Part I" | 54 minutes | October 24, 2017 (2017-10-24) |
| 1000 | 84 | "Episode 1,000: The Simpsons Spectacular Part II" | 64 minutes | October 26, 2017 (2017-10-26) |
| 1001 | 85 | "SYSK's 2017 Super Spooktacular!" | 58 minutes | October 31, 2017 (2017-10-31) |
| 1002 | 86 | "How Global Warming Works" | 63 minutes | November 2, 2017 (2017-11-02) |
| 1003 | 87 | "Movie Crush: Janet Varney on Tron" | 54 minutes | November 3, 2017 (2017-11-03) |
| 1004 | 88 | "Movie Crush: Tig Notaro on Mask" | 75 minutes | November 3, 2017 (2017-11-03) |
| 1005 | 89 | "How Restaurant Health Inspections Work" | 58 minutes | November 7, 2017 (2017-11-07) |
| 1006 | 90 | "What's permaculture all about?" | 55 minutes | November 9, 2017 (2017-11-09) |
| 1007 | 91 | "How the Flu Works" | 54 minutes | November 14, 2017 (2017-11-14) |
| 1008 | 92 | "Can movies be cursed?" | 56 minutes | November 16, 2017 (2017-11-16) |
| 1009 | 93 | "Bath Salts: Steer Clear" | 44 minutes | November 21, 2017 (2017-11-21) |
| 1010 | 94 | "What is nuclear forensics?" | 51 minutes | November 23, 2017 (2017-11-23) |
| 1011 | 95 | "How Toy Testing Works" | 50 minutes | November 28, 2017 (2017-11-28) |
| 1012 | 96 | "Cake: So Great. So, So Great" | 73 minutes | November 30, 2017 (2017-11-30) |
| 1013 | 97 | "How Vomit Phobia Works" | 33 minutes | December 5, 2017 (2017-12-05) |
| 1014 | 98 | "How Flight Attendants Work" | 44 minutes | December 7, 2017 (2017-12-07) |
| 1015 | 99 | "The Deal With Doulas" | 41 minutes | December 12, 2017 (2017-12-12) |
| 1016 | 100 | "How the Globe of Death Works" | 46 minutes | December 14, 2017 (2017-12-14) |
| 1017 | 101 | "Narcissism: But what about me?" | 63 minutes | December 19, 2017 (2017-12-19) |
| 1018 | 102 | "The 2017 SYSK Christmas Extravaganza!" | 55 minutes | December 21, 2017 (2017-12-21) |
| 1019 | 103 | "How the Seven Wonders of the Ancient World Works, Part I" | 46 minutes | December 26, 2017 (2017-12-26) |
| 1020 | 104 | "How the Seven Wonders of the Ancient World Works, Part II" | 49 minutes | December 28, 2017 (2017-12-28) |

### 2018

| No. in series | No. in season | Title | Length | Original air date |
| 1021 | 1 | "How Orchids Work" | 56 minutes | January 2, 2018 (2018-01-02) |
| 1022 | 2 | "How Impeachment Works" | 57 minutes | January 4, 2018 (2018-01-04) |
| 1023 | 3 | "The Mystery of the Mary Celeste" | 67 minutes | January 9, 2018 (2018-01-09) |
| 1024 | 4 | "What is an invasive species?" | 56 minutes | January 11, 2018 (2018-01-11) |
| 1025 | 5 | "How Removing Public Monuments Work" | 52 minutes | January 16, 2018 (2018-01-16) |
| 1026 | 6 | "How Hang Gliding Works" | 47 minutes | January 18, 2018 (2018-01-18) |
| 1027 | 7 | "How Hoarding Works" | 67 minutes | January 23, 2018 (2018-01-23) |
| 1028 | 8 | "The Manson Family Murders Part I" | 51 minutes | January 25, 2018 (2018-01-25) |
| 1029 | 9 | "The Manson Family Murders Part II" | 46 minutes | January 30, 2018 (2018-01-30) |
| 1030 | 10 | "Marijuana Vs. Alcohol: Which Is Worse For You?" | 57 minutes | February 1, 2018 (2018-02-01) |
| 1031 | 11 | "What is a Mold-A-Rama?" | 44 minutes | February 6, 2018 (2018-02-06) |
| 1032 | 12 | "The Mystery of The Grand Canyon Newlyweds" | 57 minutes | February 8, 2018 (2018-02-08) |
| 1033 | 13 | "How Pompeii Worked" | 55 minutes | February 13, 2018 (2018-02-13) |
| 1034 | 14 | "The Harriet Tubman Story" | 52 minutes | February 15, 2018 (2018-02-15) |
| 1035 | 15 | "Are Feral Children Real?" | 47 minutes | February 20, 2018 (2018-02-20) |
| 1036 | 16 | "Rosa Parks: Agent of Change" | 56 minutes | February 22, 2018 (2018-02-22) |
| 1037 | 17 | "Knife Throwing: Super Cool" | 47 minutes | February 27, 2018 (2018-02-27) |
| 1038 | 18 | "SYSK Live: Back When Ford Pintos Were Flaming Deathtraps" | 80 minutes | March 1, 2018 (2018-03-01) |
| 1039 | 19 | "The Strange Story of Sea Monkeys" | 57 minutes | March 6, 2018 (2018-03-06) |
| 1040 | 20 | "Why Do People Believe In Faith Healing?" | 58 minutes | March 8, 2018 (2018-03-08) |
| 1041 | 21 | "The Huggable, Lovable Walrus" | 55 minutes | March 13, 2018 (2018-03-13) |
| 1042 | 22 | "Is Vaping Really Bad For You?" | 46 minutes | March 15, 2018 (2018-03-15) |
| 1043 | 23 | "How the New England Vampire Panics Worked" | 52 minutes | March 20, 2018 (2018-03-20) |
| 1044 | 24 | "How the Framingham Heart Study Works" | 56 minutes | March 22, 2018 (2018-03-22) |
| 1045 | 25 | "How Meals on Wheels Works" | 53 minutes | March 27, 2018 (2018-03-27) |
| 1046 | 26 | "What are false positives?" | 49 minutes | March 29, 2018 (2018-03-29) |
| 1047 | 27 | "When Words Take on New Meanings" | 62 minutes | April 3, 2018 (2018-04-03) |
| 1048 | 28 | "Project Azorian: The CIA's Super 70s Mission To Steal A Sunken Soviet Sub" | 56 minutes | April 5, 2018 (2018-04-05) |
| 1049 | 29 | "Why Landmines Are The Deadliest Legacy Of War" | 56 minutes | April 10, 2018 (2018-04-10) |
| 1050 | 30 | "How Paramedics Work" | 53 minutes | April 12, 2018 (2018-04-12) |
| 1051 | 31 | "The Unabomber: Misguided to say the least" | 51 minutes | April 17, 2018 (2018-04-17) |
| 1052 | 32 | "Two Times In the 70s When People Buried Ferraris" | 51 minutes | April 19, 2018 (2018-04-19) |
| 1053 | 33 | "Emojis: A New Language? Nah." | 53 minutes | April 24, 2018 (2018-04-24) |
| 1054 | 34 | "Does Pyromania Actually Exist?" | 40 minutes | April 26, 2018 (2018-04-26) |
| 1055 | 35 | "Nepotism: When Hiring the Best Just Won't Do" | 47 minutes | May 1, 2018 (2018-05-01) |
| 1056 | 36 | "North Korea: What's the Deal?" | 72 minutes | May 3, 2018 (2018-05-03) |
| 1057 | 37 | "PT Barnum: More Complicated Than You've Heard" | 63 minutes | May 8, 2018 (2018-05-08) |
| 1058 | 38 | "How Drowning Works" | 56 minutes | May 10, 2018 (2018-05-10) |
| 1059 | 39 | "What's a quinceañera anyway?" | 45 minutes | May 15, 2018 (2018-05-15) |
| 1060 | 40 | "The Collar Bomb Heist" | 47 minutes | May 17, 2018 (2018-05-17) |
| 1061 | 41 | "A List Of Games You Would Surely Lose to a Computer" | 61 minutes | May 22, 2018 (2018-05-22) |
| 1062 | 42 | "How Occam's Razor Works" | 46 minutes | May 24, 2018 (2018-05-24) |
| 1063 | 43 | "How Drug Courts Work" | 57 minutes | May 29, 2018 (2018-05-29) |
| 1064 | 44 | "Is the Pied Piper About a Real Historic Tragedy?" | 46 minutes | May 31, 2018 (2018-05-31) |
| 1065 | 45 | "The Max Headroom Incident" | 54 minutes | June 5, 2018 (2018-06-05) |
| 1066 | 46 | "Frida Kahlo: Painter, Icon, Genius" | 52 minutes | June 7, 2018 (2018-06-07) |
| 1067 | 47 | "How Tsunamis Work" | 52 minutes | June 12, 2018 (2018-06-12) |
| 1068 | 48 | "Skyscrapers: 'Scuse me while I kiss the sky" | 57 minutes | June 14, 2018 (2018-06-14) |
| 1069 | 49 | "How The Pill Changed the World" | 50 minutes | June 19, 2018 (2018-06-19) |
| 1070 | 50 | "Genghis Khan: Madman or Genius?" | 55 minutes | June 21, 2018 (2018-06-21) |
| 1071 | 51 | "Can Anarchism Work?" | 66 minutes | June 26, 2018 (2018-06-26) |
| 1072 | 52 | "Narwhals: Unicorns of the Sea" | 41 minutes | June 28, 2018 (2018-06-28) |
| 1073 | 53 | "How Diabetes Works" | 60 minutes | July 3, 2018 (2018-07-03) |
| 1074 | 54 | "How the Stanford Prison Experiment Worked" | 51 minutes | July 5, 2018 (2018-07-05) |
| 1075 | 55 | "The Disappearance of the Yuba County Five" | 57 minutes | July 10, 2018 (2018-07-10) |
| 1076 | 56 | "Gerrymandering: How to Stifle Democracy" | 42 minutes | July 12, 2018 (2018-07-12) |
| 1077 | 57 | "Jobs of Bygone Eras" | 65 minutes | July 17, 2018 (2018-07-17) |
| 1078 | 58 | "How Attorney-Client Privilege Works" | 42 minutes | July 19, 2018 (2018-07-19) |
| 1079 | 59 | "Recycling Update: How’s It Going?" | 69 minutes | July 24, 2018 (2018-07-24) |
| 1080 | 60 | "The Dyatlov Pass Mystery" | 45 minutes | July 26, 2018 (2018-07-26) |
| 1081 | 61 | "How the Pony Express Worked" | 49 minutes | July 31, 2018 (2018-07-31) |
| 1082 | 62 | "How the U.S. Military Draft Works" | 60 minutes | August 2, 2018 (2018-08-02) |
| 1083 | 63 | "How Search and Rescue Works" | 65 minutes | August 7, 2018 (2018-08-07) |
| 1084 | 64 | "How Attila the Hun Worked" | 48 minutes | August 9, 2018 (2018-08-09) |
| 1085 | 65 | "How Board Breaking Works" | 50 minutes | August 14, 2018 (2018-08-14) |
| 1086 | 66 | "Who is The Man of the Hole?" | 42 minutes | August 16, 2018 (2018-08-16) |
| 1087 | 67 | "Ballpoint pens? Heck yes, ballpoint pens!" | 54 minutes | August 21, 2018 (2018-08-21) |
| 1088 | 68 | "Pterosaurs: Not Flying Dinosaurs" | 43 minutes | August 23, 2018 (2018-08-23) |
| 1089 | 69 | "Why There Aren't So Many Hotel Fires Anymore" | 49 minutes | August 28, 2018 (2018-08-28) |
| 1090 | 70 | "How Elimination Diets Work" | 49 minutes | August 30, 2018 (2018-08-30) |
| 1091 | 71 | "How Police Lineups Work" | 57 minutes | September 4, 2018 (2018-09-04) |
| 1092 | 72 | "The Lava Lamp: Goes Great With Acid" | 51 minutes | September 6, 2018 (2018-09-06) |
| 1093 | 73 | "SYSK Live: How Game Shows Work" | 73 minutes | September 11, 2018 (2018-09-11) |
| 1094 | 74 | "What are think tanks all about?" | 50 minutes | September 13, 2018 (2018-09-13) |
| 1095 | 75 | "Roundabouts: The Problem Is You" | 63 minutes | September 18, 2018 (2018-09-18) |
| 1096 | 76 | "How Ranked Choice Voting Works" | 48 minutes | September 20, 2018 (2018-09-20) |
| 1097 | 77 | "What is colorblindness?" | 41 minutes | September 25, 2018 (2018-09-25) |
| 1098 | 78 | "Seriously, What Is Dark Matter?" | 48 minutes | September 27, 2018 (2018-09-27) |
| 1099 | 79 | "How the Concorde Worked" | 61 minutes | October 2, 2018 (2018-10-02) |
| 1100 | 80 | "Algae: Food, Fuel, What?" | 57 minutes | October 4, 2018 (2018-10-04) |
| 1101 | 81 | "How Marathons Work" | 70 minutes | October 9, 2018 (2018-10-09) |
| 1102 | 82 | "When inventions kill!" | 49 minutes | October 11, 2018 (2018-10-11) |
| 1103 | 83 | "Was There A Real Robin Hood?" | 54 minutes | October 16, 2018 (2018-10-16) |
| 1104 | 84 | "Waterbeds: The Sexiest Bed?" | 44 minutes | October 18, 2018 (2018-10-18) |
| 1105 | 85 | "How Epilepsy Works" | 59 minutes | October 23, 2018 (2018-10-23) |
| 1106 | 86 | "How the Amityville Horror Worked" | 58 minutes | October 25, 2018 (2018-10-25) |
| 1107 | 87 | "SYSK’s 2018 Super Spooktacular" | 51 minutes | October 30, 2018 (2018-10-30) |
| 1108 | 88 | "How Easy Bake Ovens Work" | 41 minutes | November 1, 2018 (2018-11-01) |
| 1109 | 89 | "What were war masks?" | 44 minutes | November 6, 2018 (2018-11-06) |
| 1110 | 90 | "Is yogurt a miracle food?" | 51 minutes | November 8, 2018 (2018-11-08) |
| 1111 | 91 | "Pando: Earth’s Oldest, Hugest Organism Is Trees!" | 48 minutes | November 13, 2018 (2018-11-13) |
| 1112 | 92 | "Olive Oil: Mother Nature's Gift" | 66 minutes | November 15, 2018 (2018-11-15) |
| 1113 | 93 | "Finders Keepers: Real Law" | 44 minutes | November 20, 2018 (2018-11-20) |
| 1114 | 94 | "Fire twucks! Fire twucks! (sic)" | 54 minutes | November 22, 2018 (2018-11-22) |
| 1115 | 95 | "How the Navajo Code Talkers Worked" | 50 minutes | November 27, 2018 (2018-11-27) |
| 1116 | 96 | "Adidas v. Puma: A Sibling Rivalry" | 46 minutes | November 29, 2018 (2018-11-29) |
| 1117 | 97 | "How Search and Rescue Dogs Work" | 56 minutes | December 4, 2018 (2018-12-04) |
| 1118 | 98 | "Was the PMRC censorship in disguise?" | 60 minutes | December 6, 2018 (2018-12-06) |
| 1119 | 99 | "How Ayahuasca Works" | 50 minutes | December 11, 2018 (2018-12-11) |
| 1120 | 100 | "Are good samaritan laws effective?" | 51 minutes | December 13, 2018 (2018-12-13) |
| 1121 | 101 | "Geodesic Domes: The Wave of the Future That Wasn't" | 55 minutes | December 18, 2018 (2018-12-18) |
| 1122 | 102 | "E.T.: Is It Really the Worst Video Game of All Time?" | 47 minutes | December 20, 2018 (2018-12-20) |
| 1123 | 103 | "SYSK Live Christmas Spectacular!" | 75 minutes | December 25, 2018 (2018-12-25) |
| 1124 | 104 | "Dr. Seuss: The Good, the Bad and the Ugly" | 56 minutes | December 27, 2018 (2018-12-27) |

### Short Stuff (2018)

| No. in series | No. in season | Title | Length | Original air date |
| 1 | 1 | "Short Stuff: Grandfather Clocks" | 15 minutes | October 3, 2018 (2018-10-03) |
| 2 | 2 | "Short Stuff: William King" | 15 minutes | October 10, 2018 (2018-10-10) |
| 3 | 3 | "Short Stuff: Korean Fan Death" | 17 minutes | October 17, 2018 (2018-10-17) |
| 4 | 4 | "Short Stuff: Exploding Manholes" | 16 minutes | October 24, 2018 (2018-10-24) |
| 5 | 5 | "Short Stuff: Labor Day" | 15 minutes | October 31, 2018 (2018-10-31) |
| 6 | 6 | "Short Stuff: Vomitoria" | 15 minutes | November 7, 2018 (2018-11-07) |
| 7 | 7 | "Short Stuff: Lemonade" | 16 minutes | November 14, 2018 (2018-11-14) |
| 8 | 8 | "Short Stuff: Safety Pins" | 15 minutes | November 21, 2018 (2018-11-21) |
| 9 | 9 | "Short Stuff: iSmell" | 16 minutes | November 28, 2018 (2018-11-28) |
| 10 | 10 | "Short Stuff: Dolphin Detectors" | 16 minutes | December 5, 2018 (2018-12-05) |
| 11 | 11 | "Short Stuff: Laughing Buddha" | 14 minutes | December 12, 2018 (2018-12-12) |
| 12 | 12 | "Short Stuff: Unique Snowflakes" | 14 minutes | December 19, 2018 (2018-12-19) |
| 13 | 13 | "Short Stuff: The Brain-Bladder Connection" | 16 minutes | December 26, 2018 (2018-12-26) |

### 2019

| No. in series | No. in season | Title | Length | Original air date |
| 1125 | 1 | "Rockettes: Still Kicking After All These Years" | 50 minutes | January 1, 2019 (2019-01-01) |
| 1126 | 2 | "What was the Tunguska event?" | 47 minutes | January 3, 2019 (2019-01-03) |
| 1127 | 3 | "How the Spanish Flu Worked" | 63 minutes | January 8, 2019 (2019-01-08) |
| 1128 | 4 | "The Great Finger in the Wendy’s Chili Caper" | 49 minutes | January 10, 2019 (2019-01-10) |
| 1129 | 5 | "How Airbags Work" | 45 minutes | January 15, 2019 (2019-01-15) |
| 1130 | 6 | "The July 20th Plot to Assassinate Hitler" | 52 minutes | January 17, 2019 (2019-01-17) |
| 1131 | 7 | "SYSK Live: The Kellogg Brothers’ Wacky World of Health" | 76 minutes | January 22, 2019 (2019-01-22) |
| 1132 | 8 | "The Legend of Betsy Ross" | 47 minutes | January 24, 2019 (2019-01-24) |
| 1133 | 9 | "How Ping Pong Works" | 62 minutes | January 29, 2019 (2019-01-29) |
| 1134 | 10 | "How Central Park Works" | 58 minutes | January 31, 2019 (2019-01-31) |
| 1135 | 11 | "The Insidious Abuse of Stalking" | 62 minutes | February 5, 2019 (2019-02-05) |
| 1136 | 12 | "The True Story of BlacKkKlansman" | 50 minutes | February 7, 2019 (2019-02-07) |
| 1137 | 13 | "Could There Be A Loch Ness Monster?" | 67 minutes | February 12, 2019 (2019-02-12) |
| 1138 | 14 | "Elephants: The Best Animals?" | 66 minutes | February 14, 2019 (2019-02-14) |
| 1139 | 15 | "Yeti: The Asian Bigfoot" | 50 minutes | February 19, 2019 (2019-02-19) |
| 1140 | 16 | "How Galaxies Work" | 51 minutes | February 21, 2019 (2019-02-21) |
| 1141 | 17 | "The Science of Break-Ups" | 65 minutes | February 26, 2019 (2019-02-26) |
| 1142 | 18 | "Tuskegee Airmen: American Heroes" | 52 minutes | February 28, 2019 (2019-02-28) |
| 1150 | 19 | "What's the deal with ASMR?" | 51 minutes | March 5, 2019 (2019-03-05) |
| 1143 | 20 | "How Dyslexia Works" | 48 minutes | March 7, 2019 (2019-03-07) |
| 1144 | 21 | "The Case of Sacco and Vanzetti" | 60 minutes | March 12, 2019 (2019-03-12) |
| 1145 | 22 | "The Great Stink: The Stench So Bad They Gave It A Name" | 40 minutes | March 14, 2019 (2019-03-14) |
| 1146 | 23 | "Desert Survival: Josh and Chuck Save Your Tookus" | 50 minutes | March 19, 2019 (2019-03-19) |
| 1147 | 24 | "How Disgust Works" | 59 minutes | March 21, 2019 (2019-03-21) |
| 1148 | 25 | "How Druids Worked" | 59 minutes | March 26, 2019 (2019-03-26) |
| 1149 | 26 | "Etch A Sketch!" | 44 minutes | March 28, 2019 (2019-03-28) |
| 1151 | 27 | "How Rape Kits Work" | 55 minutes | April 2, 2019 (2019-04-02) |
| 1152 | 28 | "Were Nazis Drug-Fueled Crankheads?" | 50 minutes | April 4, 2019 (2019-04-04) |
| 1153 | 29 | "How Free Range Parenting Works" | 56 minutes | April 9, 2019 (2019-04-09) |
| 1154 | 30 | "How the Electric Chair Works" | 65 minutes | April 11, 2019 (2019-04-11) |
| 1155 | 31 | "How the Hoover Dam Works, Part I" | 51 minutes | April 16, 2019 (2019-04-16) |
| 1156 | 32 | "How the Hoover Dam Works, Part II" | 47 minutes | April 18, 2019 (2019-04-18) |
| 1157 | 33 | "Is birth order important?" | 56 minutes | April 23, 2019 (2019-04-23) |
| 1158 | 34 | "What Were Human Zoos?" | 46 minutes | April 25, 2019 (2019-04-25) |
| 1159 | 35 | "Michael Dillon: Trans Pioneer" | 60 minutes | April 30, 2019 (2019-04-30) |
| 1160 | 36 | "What Happens When the Government Thinks You're Dead?" | 44 minutes | May 2, 2019 (2019-05-02) |
| 1161 | 37 | "Remembering Live Aid" | 57 minutes | May 7, 2019 (2019-05-07) |
| 1162 | 38 | "Do Dietary Supplements Work?" | 60 minutes | May 9, 2019 (2019-05-09) |
| 1163 | 39 | "How Trampolines Work" | 59 minutes | May 14, 2019 (2019-05-14) |
| 1164 | 40 | "10ish Cases of Really Bad Luck" | 55 minutes | May 16, 2019 (2019-05-16) |
| 1165 | 41 | "How Crystals Work" | 54 minutes | May 21, 2019 (2019-05-21) |
| 1166 | 42 | "What was Tin Pan Alley?" | 46 minutes | May 23, 2019 (2019-05-23) |
| 1167 | 43 | "The Tylenol Murders, Part I" | 50 minutes | May 28, 2019 (2019-05-28) |
| 1168 | 44 | "The Tylenol Murders, Part II" | 51 minutes | May 30, 2019 (2019-05-30) |
| 1169 | 45 | "How Barcodes Work" | 59 minutes | June 4, 2019 (2019-06-04) |
| 1170 | 46 | "What is perfect pitch?" | 48 minutes | June 6, 2019 (2019-06-06) |
| 1171 | 47 | "What's the gig economy?" | 48 minutes | June 11, 2019 (2019-06-11) |
| 1172 | 48 | "How Area 51 Works" | 56 minutes | June 13, 2019 (2019-06-13) |
| 1173 | 49 | "How the Hygiene Hypothesis Works" | 50 minutes | June 18, 2019 (2019-06-18) |
| 1174 | 50 | "What happened to the Neanderthals?" | 55 minutes | June 20, 2019 (2019-06-20) |
| 1175 | 51 | "Planned Obsolescence: Engine of the Consumer Economy" | 62 minutes | June 25, 2019 (2019-06-25) |
| 1176 | 52 | "What is the Civil Air Patrol?" | 50 minutes | June 27, 2019 (2019-06-27) |
| 1177 | 53 | "Is photographic memory a real thing?" | 50 minutes | June 2, 2019 (2019-06-02) |
| 1178 | 54 | "How the Fairness Doctrine Worked" | 58 minutes | June 4, 2019 (2019-06-04) |
| 1179 | 55 | "Cleopatra: Ms. Understood" | 56 minutes | June 9, 2019 (2019-06-09) |
| 1180 | 56 | "How Sloths Work" | 60 minutes | June 11, 2019 (2019-06-11) |
| 1181 | 57 | "How Going to the Moon Works" | 59 minutes | June 16, 2019 (2019-06-16) |
| 1182 | 58 | "Sand Dunes: They Are What You Think They Are" | 47 minutes | June 18, 2019 (2019-06-18) |
| 1183 | 59 | "MOVE: Or When the Philly Police Dropped a Bomb on a Residential Neighborhood" | 57 minutes | June 23, 2019 (2019-06-23) |
| 1184 | 60 | "How Eyewitness Testimony Works(?)" | 61 minutes | June 25, 2019 (2019-06-25) |
| 1185 | 61 | "Will Deepfakes Ruin the World?" | 49 minutes | April 30, 2019 (2019-04-30) |
| 1186 | 62 | "What Were the BONE WARS?" | 58 minutes | August 1, 2019 (2019-08-01) |
| 1187 | 63 | "Iran-Contra Affair: Shady in the 80s, Part 1" | 51 minutes | August 6, 2019 (2019-08-06) |
| 1188 | 64 | "Iran-Contra Affair: Shady in the 80s, Part 2" | 49 minutes | August 8, 2019 (2019-08-08) |
| 1189 | 65 | "Solar Power: The Future or What?" | 66 minutes | August 13, 2019 (2019-08-13) |
| 1190 | 66 | "How Peyote Works" | 46 minutes | August 15, 2019 (2019-08-15) |
| 1191 | 67 | "Nuclear Semiotics: How to Talk to Future Humans" | 59 minutes | August 20, 2019 (2019-08-20) |
| 1192 | 68 | "How Ventriloquism Works" | 54 minutes | August 22, 2019 (2019-08-22) |
| 1193 | 69 | "A Brief Overview of Punk Rock" | 57 minutes | August 27, 2019 (2019-08-27) |
| 1194 | 70 | "The Rubik's Cube Episode" | 54 minutes | August 29, 2019 (2019-08-29) |
| 1195 | 71 | "Ed Gein: The Serial Killer's Serial Killer" | 52 minutes | September 3, 2019 (2019-09-03) |
| 1196 | 72 | "What's the deal with MSG?" | 61 minutes | September 5, 2019 (2019-09-05) |
| 1197 | 73 | "How Government Shutdowns Work" | 58 minutes | September 10, 2019 (2019-09-10) |
| 1198 | 74 | "Special Effects: A Short History" | 60 minutes | September 12, 2019 (2019-09-12) |
| 1199 | 75 | "The Skinny on Lyme Disease" | 53 minutes | September 17, 2019 (2019-09-17) |
| 1200 | 76 | "How the US Interstate System Works" | 66 minutes | September 19, 2019 (2019-09-19) |
| 1201 | 77 | "We Are Running Out of Sand and That Actually Matters" | 51 minutes | September 24, 2019 (2019-09-24) |
| 1202 | 78 | "What are paraphilias?" | 57 minutes | September 26, 2019 (2019-09-26) |
| 1203 | 79 | "Guardian Angels: Behind the Red Beret" | 105 minutes | October 1, 2019 (2019-10-01) |
| 1204 | 80 | "What were the Freedom Schools?" | 51 minutes | October 3, 2019 (2019-10-03) |
| 1205 | 81 | "How Environmental Psychology Works" | 54 minutes | October 8, 2019 (2019-10-08) |
| 1206 | 82 | "The Ins and Outs of Beekeeping" | 69 minutes | October 10, 2019 (2019-10-10) |
| 1207 | 83 | "How Project Blue Book Worked, Pt I" | 46 minutes | October 15, 2019 (2019-10-15) |
| 1208 | 84 | "How Project Blue Book Worked, Pt II" | 49 minutes | October 17, 2019 (2019-10-17) |
| 1209 | 85 | "What's the deal with subpoenas?" | 56 minutes | October 22, 2019 (2019-10-22) |
| 1210 | 86 | "How Historic Districts Work" | 50 minutes | October 24, 2019 (2019-10-24) |
| 1211 | 87 | "Where Did Trick-Or-Treating Come From?" | 56 minutes | October 29, 2019 (2019-10-29) |
| 1212 | 88 | "SYSK’s Scare Your Socks Off Halloween Spooktacular 2019" | 40 minutes | October 31, 2019 (2019-10-31) |
| 1213 | 89 | "How Ironman Triathlons Work" | 61 minutes | November 6, 2019 (2019-11-06) |
| 1214 | 90 | "Cockney Rhyming Slang: Beautiful Gibberish" | 48 minutes | November 7, 2019 (2019-11-07) |
| 1215 | 91 | "Augmented Reality: Coming Soon?" | 63 minutes | November 12, 2019 (2019-11-12) |
| 1216 | 92 | "NYC Water: An Engineering Marvel" | 53 minutes | November 14, 2019 (2019-11-14) |
| 1217 | 93 | "The Murder Mystery of Ötzi the Iceman" | 58 minutes | November 19, 2019 (2019-11-19) |
| 1218 | 94 | "What Makes a Must-Have Christmas Toy?" | 54 minutes | November 21, 2019 (2019-11-21) |
| 1219 | 95 | "How Carbon-14 Dating Works" | 61 minutes | November 26, 2019 (2019-11-26) |
| 1220 | 96 | "How Conversion Therapy Doesn't Work" | 69 minutes | November 28, 2019 (2019-11-28) |
| 1221 | 97 | "Did Climate Cause the Collapse of the Maya?" | 49 minutes | December 3, 2019 (2019-12-03) |
| 1222 | 98 | "What's a gap year anyway?" | 57 minutes | December 5, 2019 (2019-12-05) |
| 1223 | 99 | "Everything You Ever Wanted to Know About Gin" | 54 minutes | December 10, 2019 (2019-12-10) |
| 1224 | 100 | "How Anorexia and Bulimia Work" | 65 minutes | December 12, 2019 (2019-12-12) |
| 1225 | 101 | "MC Escher and His Trippy Art" | 62 minutes | December 17, 2019 (2019-12-17) |
| 1226 | 102 | "Cave Diving: Totally Nuts" | 56 minutes | December 19, 2019 (2019-12-19) |
| 1227 | 103 | "The SYSK Holiday Spectacular" | 44 minutes | December 24, 2019 (2019-12-24) |
| 1228 | 104 | "SYSK Live: Andre the Giant" | 69 minutes | December 26, 2019 (2019-12-26) |
| 1229 | 105 | "Are broken arrows a problem?" | 54 minutes | December 31, 2019 (2019-12-31) |

### Short Stuff (2019)

| No. in series | No. in season | Title | Length | Original air date |
| 14 | 1 | "Short Stuff: Khipu" | 17 minutes | January 2, 2019 (2019-01-02) |
| 15 | 2 | "Short Stuff: How Often Do You Need To Change Your Oil?" | 16 minutes | January 9, 2019 (2019-01-09) |
| 16 | 3 | "Short Stuff: Olestra" | 13 minutes | January 16, 2019 (2019-01-16) |
| 17 | 4 | "Short Stuff: Johnny Appleseed" | 14 minutes | January 30, 2019 (2019-01-30) |
| 18 | 5 | "Short Stuff: Ellen Richards" | 13 minutes | February 6, 2019 (2019-02-06) |
| 19 | 6 | "Short Stuff: War of Jenkins' Ear" | 14 minutes | February 13, 2019 (2019-02-13) |
| 20 | 7 | "Short Stuff: Turbulence" | 13 minutes | February 20, 2019 (2019-02-20) |
| 21 | 8 | "Short Stuff: Black Loyalists" | 14 minutes | February 27, 2019 (2019-02-27) |
| 22 | 9 | "Short Stuff: Wigs in English Court" | 14 minutes | March 6, 2019 (2019-03-06) |
| 23 | 10 | "Short Stuff: Bedbugs" | 14 minutes | March 13, 2019 (2019-03-13) |
| 24 | 11 | "Short Stuff: The Sandman" | 14 minutes | March 20, 2019 (2019-03-20) |
| 25 | 12 | "Short Stuff: When Elvis Met Nixon" | 16 minutes | March 27, 2019 (2019-03-27) |
| 26 | 13 | "Short Stuff: Unspent Campaign Money" | 13 minutes | April 3, 2019 (2019-04-03) |
| 27 | 14 | "Short Stuff: Lake Peigneur" | 15 minutes | April 10, 2019 (2019-04-10) |
| 28 | 15 | "Short Stuff: Emu Wars" | 14 minutes | April 17, 2019 (2019-04-17) |
| 29 | 16 | "Short Stuff: Fear of Public Speaking" | 14 minutes | April 24, 2019 (2019-04-24) |
| 30 | 17 | "Short Stuff: The Number 23" | 15 minutes | May 1, 2019 (2019-05-01) |
| 31 | 18 | "Short Stuff: Nicknames" | 15 minutes | May 8, 2019 (2019-05-08) |
| 32 | 19 | "Short Stuff: Honorary Degrees" | 15 minutes | May 15, 2019 (2019-05-15) |
| 33 | 20 | "Short Stuff: James Polk, Disinterred" | 14 minutes | May 22, 2019 (2019-05-22) |
| 34 | 21 | "Short Stuff: Look-Alike Old Couples" | 15 minutes | May 29, 2019 (2019-05-29) |
| 35 | 22 | "Short Stuff: Robert Johnson and the Devil" | 14 minutes | June 5, 2019 (2019-06-05) |
| 36 | 23 | "Short Stuff: Smoke Signals" | 16 minutes | June 12, 2019 (2019-06-12) |
| 37 | 24 | "Short Stuff: Emperor Norton" | 16 minutes | June 19, 2019 (2019-06-19) |
| 38 | 25 | "Short Stuff: Prison Food" | 13 minutes | June 26, 2019 (2019-06-26) |
| 39 | 26 | "Short Stuff: Mitsuye Endo" | 13 minutes | July 3, 2019 (2019-07-03) |
| 40 | 27 | "Short Stuff: The Coconut Cult" | 18 minutes | July 10, 2019 (2019-07-10) |
| 41 | 28 | "Short Stuff: Yellow Rain" | 14 minutes | July 17, 2019 (2019-07-17) |
| 42 | 29 | "Short Stuff: Aristides de Sousa Mendes" | 14 minutes | July 24, 2019 (2019-07-24) |
| 43 | 30 | "Short Stuff: The Man Who Didn’t Eat for a Year" | 14 minutes | July 31, 2019 (2019-07-31) |
| 44 | 31 | "Short Stuff: Time Zones" | 15 minutes | August 7, 2019 (2019-08-07) |
| 45 | 32 | "Short Stuff: Petrichor" | 14 minutes | August 14, 2019 (2019-08-14) |
| 46 | 33 | "Short Stuff: Horseshoe Crab Blood" | 15 minutes | August 21, 2019 (2019-08-21) |
| 47 | 34 | "Short Stuff: Dead Bodies and Airline Codes" | 15 minutes | August 28, 2019 (2019-08-28) |
| 48 | 35 | "Short Stuff: Barbed Wire" | 15 minutes | September 4, 2019 (2019-09-04) |
| 49 | 36 | "Short Stuff: Papasan Chairs" | 15 minutes | September 11, 2019 (2019-09-11) |
| 50 | 37 | "Short Stuff: Scurvy" | 15 minutes | September 18, 2019 (2019-09-18) |
| 51 | 38 | "Short Stuff: Dare Stones" | 17 minutes | September 25, 2019 (2019-09-25) |
| 52 | 39 | "Short Stuff: Fish n' Chips" | 15 minutes | October 2, 2019 (2019-10-02) |
| 53 | 40 | "Short Stuff: The Devil's Den" | 15 minutes | October 9, 2019 (2019-10-09) |
| 54 | 41 | "Short Stuff: The Disappearance of Ambrose Bierce" | 14 minutes | October 16, 2019 (2019-10-16) |
| 55 | 42 | "Short Stuff: The Toxic Death of Gloria Ramirez" | 14 minutes | October 23, 2019 (2019-10-23) |
| 56 | 43 | "Short Stuff: Our Shortie Halloween Spooktacular" | 14 minutes | October 30, 2019 (2019-10-30) |
| 57 | 44 | "Short Stuff: The History of Paternity Testing" | 13 minutes | November 6, 2019 (2019-11-06) |
| 58 | 45 | "Short Stuff: The Conch Republic" | 16 minutes | November 13, 2019 (2019-11-13) |
| 59 | 46 | "Short Stuff: Backyard Burials" | 15 minutes | November 20, 2019 (2019-11-20) |
| 60 | 47 | "Short Stuff: Niagara Falls Dewatered" | 17 minutes | November 27, 2019 (2019-11-27) |
| 61 | 48 | "Short Stuff: Macadamia Nuts" | 14 minutes | December 4, 2019 (2019-12-04) |
| 62 | 49 | "Short Stuff: Whisky or Bourbon?" | 15 minutes | December 11, 2019 (2019-12-11) |
| 63 | 50 | "Short Stuff: Obituaries" | 15 minutes | December 18, 2019 (2019-12-18) |
| 64 | 51 | "Short Stuff: The Santa Claus Association" | 15 minutes | December 25, 2019 (2019-12-25) |

### 2020

| No. in series | No. in season | Title | Length | Original air date |
| 1230 | 1 | "How Safecracking Works" | 63 minutes | January 2, 2020 (2020-01-02) |
| 1231 | 2 | "The Disappearance of Flight MH370, Part I" | 46 minutes | January 7, 2020 (2020-01-07) |
| 1232 | 3 | "The Disappearance of Flight MH370, Part II" | 50 minutes | January 9, 2020 (2020-01-09) |
| 1233 | 4 | "Transdermal Implants: Body Art or Nightmare Fuel?" | 58 minutes | January 14, 2020 (2020-01-14) |
| 1234 | 5 | "The Tulsa 'Race Riots'" | 51 minutes | January 16, 2020 (2020-01-16) |
| 1235 | 6 | "Why Postal Employees Go Postal" | 53 minutes | January 21, 2020 (2020-01-21) |
| 1236 | 7 | "Barefoot Running: The Best Podcast Episode in History" | 47 minutes | January 23, 2020 (2020-01-23) |
| 1237 | 8 | "Amazing Animal Stories!" | 42 minutes | January 28, 2020 (2020-01-28) |
| 1238 | 9 | "Who were the Buffalo Soldiers?" | 56 minutes | January 30, 2020 (2020-01-30) |
| 1239 | 10 | "How AI Facial Recognition Works" | 60 minutes | February 4, 2020 (2020-02-04) |
| 1240 | 11 | "Why are Pentecostals growing so rapidly?" | 46 minutes | February 6, 2020 (2020-02-06) |
| 1241 | 12 | "Optogenetics: Controlling Your Genes with Light" | 51 minutes | February 11, 2020 (2020-02-11) |
| 1242 | 13 | "911 Is Not a Joke" | 59 minutes | February 13, 2020 (2020-02-13) |
| 1243 | 14 | "The Unsolved Indiana Dunes Disappearances" | 46 minutes | February 18, 2020 (2020-02-18) |
| 1244 | 15 | "Birthmarks: Probably Not the Mark of the Devil" | 55 minutes | February 20, 2020 (2020-02-20) |
| 1245 | 16 | "What's the deal with indigo?" | 51 minutes | February 25, 2020 (2020-02-25) |
| 1246 | 17 | "Sammy Davis Jr: National Treasure" | 61 minutes | February 27, 2020 (2020-02-27) |
| 1247 | 18 | "How Morphic Fields Work?" | 58 minutes | March 3, 2020 (2020-03-03) |
| 1248 | 19 | "Mardi Gras! One month late" | 51 minutes | March 5, 2020 (2020-03-05) |
| 1249 | 20 | "How Coyotes Work" | 50 minutes | March 10, 2020 (2020-03-10) |
| 1250 | 21 | "How Ice Climbing Works" | 62 minutes | March 12, 2020 (2020-03-12) |
| 1251 | 22 | "Chopsticks > Forks" | 56 minutes | March 17, 2020 (2020-03-17) |
| 1252 | 23 | "What was the Falkland Islands War all about anyway?" | 57 minutes | March 19, 2020 (2020-03-19) |
| 1253 | 24 | "Could A Robot Tax Win the War on Poverty?" | 59 minutes | March 24, 2020 (2020-03-24) |
| 1254 | 25 | "How COVID-19 Works" | 71 minutes | March 26, 2020 (2020-03-26) |
| 1255 | 26 | "How Dog Training Works" | 50 minutes | March 31, 2020 (2020-03-31) |
| 1256 | 27 | "Student Loans: UGH!" | 61 minutes | April 2, 2020 (2020-04-02) |
| 1257 | 28 | "The Legends of Lost Nazi Gold" | 51 minutes | April 7, 2020 (2020-04-07) |
| 1258 | 29 | "Dr. Elizabeth Blackwell, Feminist Physician" | 54 minutes | April 9, 2020 (2020-04-09) |
| 1259 | 30 | "Bidets: Now More Than Ever" | 52 minutes | April 14, 2020 (2020-04-14) |
| 1260 | 31 | "How Wastewater Treatment Works" | 63 minutes | April 16, 2020 (2020-04-16) |
| 1261 | 32 | "The Soul Train Episode" | 51 minutes | April 21, 2020 (2020-04-21) |
| 1262 | 33 | "How the Voyager Golden Records Work" | 69 minutes | April 23, 2020 (2020-04-23) |
| 1263 | 34 | "How Existential Risks Work" | 60 minutes | April 28, 2020 (2020-04-28) |
| 1264 | 35 | "Agatha Christie: Queen of the Murder Mystery" | 58 minutes | April 30, 2020 (2020-04-30) |
| 1265 | 36 | "I'm Spartacus!" | 58 minutes | May 5, 2020 (2020-05-05) |
| 1266 | 37 | "Zippers: Humans’ Greatest Invention? No, But Still Good" | 59 minutes | May 7, 2020 (2020-05-07) |
| 1267 | 38 | "How Herd Immunity Works" | 68 minutes | May 12, 2020 (2020-05-12) |
| 1268 | 39 | "How Peanut Butter Works" | 61 minutes | May 14, 2020 (2020-05-14) |
| 1269 | 40 | "How Spiritualism Works" | 66 minutes | May 19, 2020 (2020-05-19) |
| 1270 | 41 | "How Bras Work" | 57 minutes | May 21, 2020 (2020-05-21) |
| 1271 | 42 | "Hummingbirds: Ornery Helicopters of the Animal Kingdom" | 51 minutes | May 26, 2020 (2020-05-26) |
| 1272 | 43 | "How Narcolepsy Works" | 57 minutes | May 28, 2020 (2020-05-28) |
| 1273 | 44 | "Heroin: The Drug" | 57 minutes | June 2, 2020 (2020-06-02) |
| 1274 | 45 | "The Massacre at Tiananmen Square" | 67 minutes | June 4, 2020 (2020-06-04) |
| 1275 | 46 | "How Project Star Gate Worked" | 58 minutes | June 9, 2020 (2020-06-09) |
| 1276 | 47 | "Can You Eat A Tapeworm To Lose Weight?" | 45 minutes | June 11, 2020 (2020-06-11) |
| 1277 | 48 | "The War on Fat: The Seven Countries Study" | 53 minutes | June 16, 2020 (2020-06-16) |
| 1278 | 49 | "The Manhattan Grid" | 51 minutes | June 18, 2020 (2020-06-18) |
| 1279 | 50 | "How Ultrasound Works" | 54 minutes | June 23, 2020 (2020-06-23) |
| 1280 | 51 | "Matcha: That Ain't Just Tea" | 51 minutes | June 25, 2020 (2020-06-25) |
| 1281 | 52 | "Bruxism: Grinding Your Teeth Is the Pits" | 54 minutes | June 30, 2020 (2020-06-30) |
| 1282 | 53 | "Oh Yes, How Soil Works" | 61 minutes | July 2, 2020 (2020-07-02) |
| 1283 | 54 | "What was the KGB?" | 55 minutes | July 7, 2020 (2020-07-07) |
| 1284 | 55 | "Essential Oils: Nature's Cure?" | 60 minutes | July 9, 2020 (2020-07-09) |
| 1285 | 56 | "Flagpole Sitting: A Real Fad" | 56 minutes | July 14, 2020 (2020-07-14) |
| 1286 | 57 | "Robber Barons!" | 69 minutes | July 16, 2020 (2020-07-16) |
| 1287 | 58 | "How We Almost Got Rid of Polio" | 51 minutes | July 21, 2020 (2020-07-21) |
| 1288 | 59 | "Everything You Ever Wanted to Know About Mobile Phones" | 62 minutes | July 23, 2020 (2020-07-23) |
| 1289 | 60 | "How Hurricanes Work" | 58 minutes | July 28, 2020 (2020-07-28) |
| 1290 | 61 | "How Soap Works" | 54 minutes | July 30, 2020 (2020-07-30) |
| 1291 | 62 | "Wasps: Not as cute as bees" | 52 minutes | August 4, 2020 (2020-08-04) |
| 1292 | 63 | "How Miniature Golf Works" | 53 minutes | August 6, 2020 (2020-08-06) |
| 1293 | 64 | "Pirate Radio: Mavericks on the High Seas" | 54 minutes | August 11, 2020 (2020-08-11) |
| 1294 | 65 | "Olympic Torches: Remember Those?" | 49 minutes | August 13, 2020 (2020-08-13) |
| 1295 | 66 | "How Anti-Dieting Works" | 52 minutes | August 18, 2020 (2020-08-18) |
| 1296 | 67 | "1-800-PODCAST" | 47 minutes | August 20, 2020 (2020-08-20) |
| 1297 | 68 | "How Sneezing Works" | 54 minutes | August 25, 2020 (2020-08-25) |
| 1298 | 69 | "Blacksmiths? You got that right!" | 55 minutes | August 27, 2020 (2020-08-27) |
| 1299 | 70 | "How the Escape from Alcatraz Worked" | 60 minutes | September 1, 2020 (2020-09-01) |
| 1300 | 71 | "The Disturbing Disappearance of Tara Calico" | 46 minutes | September 3, 2020 (2020-09-03) |
| 1301 | 72 | "Frances Perkins: Influential and Unknown" | 46 minutes | September 8, 2020 (2020-09-08) |
| 1302 | 73 | "Wetlands! Wetlands! Wetlands!" | 50 minutes | September 10, 2020 (2020-09-10) |
| 1303 | 74 | "Origami: Folding Goodness" | 52 minutes | September 15, 2020 (2020-09-15) |
| 1304 | 75 | "How Election Polling Works and Doesn't Work" | 52 minutes | September 17, 2020 (2020-09-17) |
| 1305 | 76 | "How Sweepstakes Work" | 56 minutes | September 22, 2020 (2020-09-22) |
| 1306 | 77 | "At Long Last: Hawaiian Overthrow Episode" | 56 minutes | September 24, 2020 (2020-09-24) |
| 1307 | 78 | "Conjugal Visits: Not exactly what you think" | 51 minutes | September 29, 2020 (2020-09-29) |
| 1308 | 79 | "Fallout Shelters: Probably Useless (Let’s Never Find Out)" | 52 minutes | October 1, 2020 (2020-10-01) |
| 1309 | 80 | "What's the deal with swing states?" | 52 minutes | October 6, 2020 (2020-10-06) |
| 1310 | 81 | "Printing press? Big deal!" | 59 minutes | October 8, 2020 (2020-10-08) |
| 1311 | 82 | "Wind Tunnels: More Important Than You Realize" | 50 minutes | October 13, 2020 (2020-10-13) |
| 1312 | 83 | "Porcupines: Little Stabby Cutie Pies" | 45 minutes | October 15, 2020 (2020-10-15) |
| 1313 | 84 | "10 Voter Suppression Methods" | 52 minutes | October 20, 2020 (2020-10-20) |
| 1314 | 85 | "Beavers: Tail Slapping Fun" | 46 minutes | October 22, 2020 (2020-10-22) |
| 1315 | 86 | "A History of Nursing Homes" | 57 minutes | October 27, 2020 (2020-10-27) |
| 1316 | 87 | "SYSK’s Scare Your Pants Off (and Back On) Halloween Spooktacular" | 41 minutes | October 29, 2020 (2020-10-29) |
| 1317 | 88 | "The Amazing Roberto Clemente" | 50 minutes | November 3, 2020 (2020-11-03) |
| 1318 | 89 | "All the Gold In Fort Knox: Meh" | 56 minutes | November 5, 2020 (2020-11-05) |
| 1319 | 90 | "The Bay of Pigs Disaster" | 54 minutes | November 10, 2020 (2020-11-10) |
| 1320 | 91 | "How Macy's Thanksgiving Parade Works" | 52 minutes | November 12, 2020 (2020-11-12) |
| 1321 | 92 | "How Pain Works" | 57 minutes | November 17, 2020 (2020-11-17) |
| 1322 | 93 | "The Great War of the Worlds Panic Myth" | 51 minutes | November 19, 2020 (2020-11-19) |
| 1323 | 94 | "Patty Hearst: Brainwashed or Bandit?" | 60 minutes | November 24, 2020 (2020-11-24) |
| 1324 | 95 | "Gobble Gobble: Turkeys!" | 51 minutes | November 26, 2020 (2020-11-26) |
| 1325 | 96 | "Cabbage Patch Kids: Must-Have Toy of the Century" | 54 minutes | December 1, 2020 (2020-12-01) |
| 1326 | 97 | "John Lennon and the FBI" | 47 minutes | December 3, 2020 (2020-12-03) |
| 1327 | 98 | "How Class Action Lawsuits Work" | 54 minutes | December 8, 2020 (2020-12-08) |
| 1328 | 99 | "The Taliesin Massacre" | 47 minutes | December 10, 2020 (2020-12-10) |
| 1329 | 100 | "Joseph Merrick, aka "The Elephant Man"" | 49 minutes | December 15, 2020 (2020-12-15) |
| 1330 | 101 | "Aspirin: The Wonder Drug" | 52 minutes | December 17, 2020 (2020-12-17) |
| 1331 | 102 | "How Buffets Work" | 62 minutes | December 22, 2020 (2020-12-22) |
| 1332 | 103 | "The SYSK 2020 Holly Jolly Extravaganza!" | 42 minutes | December 24, 2020 (2020-12-24) |
| 1333 | 104 | "Theremins: World's First Electronic Music" | 56 minutes | December 29, 2020 (2020-12-29) |
| 1334 | 105 | "La Dame de Fer (Eiffel Tower)" | 53 minutes | December 31, 2020 (2020-12-31) |

### Short Stuff (2020)

| No. in series | No. in season | Title | Length | Original air date |
| 65 | 1 | "Short Stuff: Why Does Time Speed Up As You Age?" | 16 minutes | January 1, 2020 (2020-01-01) |
| 66 | 2 | "Short Stuff: Corduroy" | 15 minutes | January 8, 2020 (2020-01-08) |
| 67 | 3 | "Short Stuff: The Mona Lisa" | 15 minutes | January 15, 2020 (2020-01-15) |
| 68 | 4 | "Short Stuff: Byford Dolphin Incident" | 15 minutes | January 22, 2020 (2020-01-22) |
| 69 | 5 | "Short Stuff: The O.K. Corral" | 14 minutes | January 29, 2020 (2020-01-29) |
| 70 | 6 | "Short Stuff: The Iowa Caucus" | 16 minutes | February 5, 2020 (2020-02-05) |
| 71 | 7 | "Short Stuff: Body Under The Bed" | 13 minutes | February 12, 2020 (2020-02-12) |
| 72 | 8 | "Short Stuff: Mexican Jumping Beans" | 14 minutes | February 19, 2020 (2020-02-19) |
| 73 | 9 | "Short Stuff: Hawaiian Night Marchers" | 11 minutes | February 26, 2020 (2020-02-26) |
| 74 | 10 | "Short Stuff: Exclamation Points!" | 15 minutes | March 4, 2020 (2020-03-04) |
| 75 | 11 | "Short Stuff: Teresita Basa" | 15 minutes | March 11, 2020 (2020-03-11) |
| 76 | 12 | "Short Stuff: The Pledge of Allegiance" | 15 minutes | March 18, 2020 (2020-03-18) |
| 77 | 13 | "Short Stuff: Dagen H" | 14 minutes | March 25, 2020 (2020-03-25) |
| 78 | 14 | "Short Stuff: 666" | 14 minutes | April 1, 2020 (2020-04-01) |
| 79 | 15 | "Short Stuff: AAirpass" | 16 minutes | April 8, 2020 (2020-04-08) |
| 80 | 16 | "Short Stuff: Turning Down the Radio When You're Lost" | 15 minutes | April 15, 2020 (2020-04-15) |
| 81 | 17 | "Short Stuff: The NY Times Crossword" | 15 minutes | April 22, 2020 (2020-04-22) |
| 82 | 18 | "Short Stuff: Mullets: 'Nuff Said" | 14 minutes | April 29, 2020 (2020-04-29) |
| 83 | 19 | "Short Stuff: Gibtown: Sideshow Central" | 15 minutes | May 6, 2020 (2020-05-06) |
| 84 | 20 | "Short Stuff: Charley Horse" | 13 minutes | May 13, 2020 (2020-05-13) |
| 85 | 21 | "Short Stuff: Mary Had A Little Lamb" | 15 minutes | May 20, 2020 (2020-05-20) |
| 86 | 22 | "Short Stuff: Lawn Darts" | 14 minutes | May 27, 2020 (2020-05-27) |
| 87 | 23 | "Short Stuff: Disappearing Dirty Dancing Lake" | 13 minutes | June 3, 2020 (2020-06-03) |
| 88 | 24 | "Short Stuff: Foie Gras" | 14 minutes | June 10, 2020 (2020-06-10) |
| 89 | 25 | "Short Stuff: Haint Blue" | 12 minutes | June 17, 2020 (2020-06-17) |
| 90 | 26 | "Short Stuff: Nouns of assemblage... assemble!" | 12 minutes | June 24, 2020 (2020-06-24) |
| 91 | 27 | "Short Stuff: The Science of Funny Words" | 15 minutes | July 1, 2020 (2020-07-01) |
| 92 | 28 | "Short Stuff: The @ Symbol" | 16 minutes | July 8, 2020 (2020-07-08) |
| 93 | 29 | "Short Stuff: Centralia Coal Fire" | 16 minutes | July 15, 2020 (2020-07-15) |
| 94 | 30 | "Short Stuff: The Death of Billy the Kid" | 17 minutes | July 22, 2020 (2020-07-22) |
| 95 | 31 | "Short Stuff: Habsburg Jaw" | 14 minutes | July 29, 2020 (2020-07-29) |
| 96 | 32 | "Short Stuff: Jigsaw Puzzles" | 16 minutes | August 5, 2020 (2020-08-05) |
| 97 | 33 | "Short Stuff: The Return of Bill Gates!" | 31 minutes | August 12, 2020 (2020-08-12) |
| 98 | 34 | "Short Stuff: The Great American Coin Shortage of 2020" | 14 minutes | August 19, 2020 (2020-08-19) |
| 99 | 35 | "Short Stuff: Carrots and Your Eyes" | 14 minutes | August 26, 2020 (2020-08-26) |
| 100 | 36 | "Short Stuff: More Phrase Origins" | 14 minutes | September 2, 2020 (2020-09-02) |
| 101 | 37 | "Short Stuff: Streisand Effect" | 16 minutes | September 9, 2020 (2020-09-09) |
| 102 | 38 | "Short Stuff: Black Cowboys" | 15 minutes | September 16, 2020 (2020-09-16) |
| 103 | 39 | "Short Stuff: Petticoat Rulers" | 13 minutes | September 23, 2020 (2020-09-23) |
| 104 | 40 | "Short Stuff: That's A Head Scratcher" | 12 minutes | September 30, 2020 (2020-09-30) |
| 105 | 41 | "Short Stuff: Lying in State" | 12 minutes | October 7, 2020 (2020-10-07) |
| 106 | 42 | "Short Stuff: What is Latinx anyway?" | 13 minutes | October 14, 2020 (2020-10-14) |
| 107 | 43 | "Short Stuff: Haunted Real Estate" | 13 minutes | October 21, 2020 (2020-10-21) |
| 108 | 44 | "Short Stuff: Poe Toaster" | 15 minutes | April 28, 2020 (2020-04-28) |
| 109 | 45 | "Short Stuff: Fruit Flies, Why?" | 12 minutes | November 4, 2020 (2020-11-04) |
| 110 | 46 | "Short Stuff: Plastic Pink Flamingos" | 13 minutes | November 11, 2020 (2020-11-11) |
| 111 | 47 | "Short Stuff: Squirrel Nuts" | 12 minutes | November 18, 2020 (2020-11-18) |
| 112 | 48 | "Short Stuff: How Eyes In a Painting Follow You" | 12 minutes | November 25, 2020 (2020-11-25) |
| 113 | 49 | "Short Stuff: Pimento Cheese!" | 15 minutes | December 2, 2020 (2020-12-02) |
| 114 | 50 | "Short Stuff: Cramming" | 14 minutes | December 9, 2020 (2020-12-09) |
| 115 | 51 | "Short Stuff: Modern Funerals" | 13 minutes | December 16, 2020 (2020-12-16) |
| 116 | 52 | "Short Stuff: Chinese Food on Christmas" | 13 minutes | December 23, 2020 (2020-12-23) |
| 117 | 53 | "Short Stuff: Ig-pay Atin-lay (Sorry)" | 13 minutes | December 30, 2020 (2020-12-30) |

### 2021

| No. in series | No. in season | Title | Length | Original air date |
| 1335 | 1 | "Space Weather - What's That?!" | 54 minutes | January 5, 2021 (2021-01-05) |
| 1336 | 2 | "The Wright Brothers" | 69 minutes | January 7, 2021 (2021-01-07) |
| 1337 | 3 | "Hell! Hell! Hell!" | 62 minutes | January 12, 2021 (2021-01-12) |
| 1338 | 4 | "The Science of Cute" | 58 minutes | January 14, 2021 (2021-01-14) |
| 1339 | 5 | "What does a tire company know about food?" | 51 minutes | January 19, 2021 (2021-01-19) |
| 1340 | 6 | "Finding the Fenn Treasure" | 54 minutes | January 21, 2021 (2021-01-21) |
| 1341 | 7 | "The KKK: Loathsome Cosplay Rednecks" | 62 minutes | January 26, 2021 (2021-01-26) |
| 1342 | 8 | "How Hydropower Works" | 56 minutes | January 28, 2021 (2021-01-28) |
| 1343 | 9 | "How Groundhog Day Works" | 55 minutes | February 2, 2021 (2021-02-02) |
| 1344 | 10 | "The NAACP" | 50 minutes | February 4, 2021 (2021-02-04) |
| 1345 | 11 | "Sacagawea: Impressive Teen" | 53 minutes | February 9, 2021 (2021-02-09) |
| 1346 | 12 | "How Housing Discrimination Works" | 59 minutes | February 11, 2021 (2021-02-11) |
| 1347 | 13 | "The Disappearance of Lars Mittank" | 48 minutes | February 16, 2021 (2021-02-16) |
| 1348 | 14 | "How Blue Holes Work" | 42 minutes | February 18, 2021 (2021-02-18) |
| 1349 | 15 | "What Will Farming 4.0 Look Like?" | 51 minutes | February 23, 2021 (2021-02-23) |
| 1350 | 16 | "How Bruce Lee Worked" | 56 minutes | February 25, 2021 (2021-02-25) |
| 1351 | 17 | "Is the Free Radical Theory of Aging Wrong?" | 56 minutes | March 2, 2021 (2021-03-02) |
| 1352 | 18 | "Why is the Equal Rights Amendment still not ratified?" | 54 minutes | March 4, 2021 (2021-03-04) |
| 1353 | 19 | "Dragons: As Real as Mermaids" | 45 minutes | March 9, 2021 (2021-03-09) |
| 1354 | 20 | "Karaoke: Tuesday Night Fever" | 59 minutes | March 11, 2021 (2021-03-11) |
| 1355 | 21 | "The Parrot Episode" | 56 minutes | March 16, 2021 (2021-03-16) |
| 1356 | 22 | "The Texas City Disaster of 1947" | 46 minutes | March 18, 2021 (2021-03-18) |
| 1357 | 23 | "What is biophilic design?" | 56 minutes | March 23, 2021 (2021-03-23) |
| 1358 | 24 | "Space Junk, Ahoy!" | 55 minutes | March 25, 2021 (2021-03-25) |
| 1359 | 25 | "How the Titanic Worked: Part One" | 53 minutes | March 30, 2021 (2021-03-30) |
| 1360 | 26 | "How the Titanic Worked: Part Two" | 55 minutes | April 1, 2021 (2021-04-01) |
| 1361 | 27 | "Havana Syndrome: ¿Qué Diablos?" | 48 minutes | April 6, 2021 (2021-04-06) |
| 1362 | 28 | "Muzak: Easy Listening Goodness" | 58 minutes | April 8, 2021 (2021-04-08) |
| 1363 | 29 | "How the Electrical Grid Works" | 64 minutes | April 13, 2021 (2021-04-13) |
| 1364 | 30 | "Hair Loss: The Pits" | 63 minutes | April 15, 2021 (2021-04-15) |
| 1365 | 31 | "Mechanical Bulls!" | 52 minutes | April 20, 2021 (2021-04-20) |
| 1366 | 32 | "How Stamp Collecting Works" | 61 minutes | April 22, 2021 (2021-04-22) |
| 1367 | 33 | "Truffles: Underground Treasures" | 46 minutes | April 27, 2021 (2021-04-27) |
| 1368 | 34 | "How Corporate Taxes Work" | 55 minutes | April 29, 2021 (2021-04-29) |
| 1369 | 35 | "The Appendix: No Respect" | 49 minutes | May 4, 2021 (2021-05-04) |
| 1370 | 36 | "How Uranium Mining Works" | 56 minutes | May 6, 2021 (2021-05-06) |
| 1371 | 37 | "The Ivy League" | 55 minutes | May 11, 2021 (2021-05-11) |
| 1372 | 38 | "How Monster Trucks Work" | 53 minutes | May 13, 2021 (2021-05-13) |
| 1373 | 39 | "The Cleveland Torso Murders" | 54 minutes | May 18, 2021 (2021-05-18) |
| 1374 | 40 | "Girl Scouts: More than cookie sellers" | 56 minutes | May 20, 2021 (2021-05-20) |
| 1375 | 41 | "How Cleft Lips and Palates Work" | 46 minutes | May 25, 2021 (2021-05-25) |
| 1376 | 42 | "Night Trap: The Video Game Failure that Changed the Industry" | 47 minutes | May 27, 2021 (2021-05-27) |
| 1377 | 43 | "What Causes Inflation?" | 53 minutes | June 1, 2021 (2021-06-01) |
| 1378 | 44 | "John Muir: Outdoor Enthusiast" | 48 minutes | June 3, 2021 (2021-06-03) |
| 1379 | 45 | "Slime Mold: 0% Mold, 100% Amazing" | 55 minutes | June 8, 2021 (2021-06-08) |
| 1380 | 46 | "POGs: The 90s in a Bottle Cap" | 55 minutes | June 10, 2021 (2021-06-10) |
| 1381 | 47 | "Seven - No, Wait, Five - Mysteries of the Art World" | 52 minutes | June 15, 2021 (2021-06-15) |
| 1382 | 48 | "How Venus Works" | 46 minutes | June 17, 2021 (2021-06-17) |
| 1383 | 49 | "The Mystery of Damascus Steel" | 42 minutes | June 22, 2021 (2021-06-22) |
| 1384 | 50 | "How Faraday Cages Work" | 48 minutes | June 24, 2021 (2021-06-24) |
| 1385 | 51 | "Poison Control Centers: A Good Thing" | 56 minutes | June 29, 2021 (2021-06-29) |
| 1386 | 52 | "The Grand Ole Opry Cast" | 43 minutes | July 1, 2021 (2021-07-01) |
| 1387 | 53 | "The Sad Story of William James Sidis" | 46 minutes | July 6, 2021 (2021-07-06) |

### Short Stuff (2021)

| No. in series | No. in season | Title | Length | Original air date |
| 118 | 1 | "Short Stuff: Is It Theater or Theatre?" | 12 minutes | January 6, 2021 (2021-01-06) |
| 119 | 2 | "Short Stuff: Silverfish" | 10 minutes | January 13, 2021 (2021-01-13) |
| 120 | 3 | "Short Stuff: Necco" | 13 minutes | January 20, 2021 (2021-01-20) |
| 121 | 4 | "Short Stuff: Vantablack" | 13 minutes | January 27, 2021 (2021-01-27) |
| 122 | 5 | "Short Stuff: Balloonfest" | 14 minutes | February 3, 2021 (2021-02-03) |
| 123 | 6 | "Short Stuff: How California Got Its Name" | 13 minutes | February 10, 2021 (2021-02-10) |
| 124 | 7 | "Short Stuff: Freedom House Ambulance Services" | 17 minutes | February 17, 2021 (2021-02-17) |
| 125 | 8 | "Short Stuff: The Body in the Cylinder" | 15 minutes | February 24, 2021 (2021-02-24) |
| 126 | 9 | "Short Stuff: Dog Suicide Bridge" | 13 minutes | March 3, 2021 (2021-03-03) |
| 127 | 10 | "Short Stuff: Tooth Fairy: Not Real" | 13 minutes | March 10, 2021 (2021-03-10) |
| 128 | 11 | "Short Stuff: Brazilian Jars" | 16 minutes | March 17, 2021 (2021-03-17) |
| 129 | 12 | "Short Stuff: Cellphones on Airplanes" | 14 minutes | March 24, 2021 (2021-03-24) |
| 130 | 13 | "Short Stuff: What's the oldest book?" | 12 minutes | March 31, 2021 (2021-03-31) |
| 131 | 14 | "Short Stuff: Venus de Milo" | 12 minutes | April 7, 2021 (2021-04-07) |
| 132 | 15 | "Short Stuff: Palindromes" | 14 minutes | April 14, 2021 (2021-04-14) |
| 133 | 16 | "Short Stuff: Madam C.J. Walker" | 14 minutes | April 21, 2021 (2021-04-21) |
| 134 | 17 | "Short Stuff: Ivar The Boneless" | 11 minutes | April 28, 2021 (2021-04-28) |
| 135 | 18 | "Short Stuff: Squarer Than Wombat Poop" | 13 minutes | May 5, 2021 (2021-05-05) |
| 136 | 19 | "Short Stuff: Garter Snakes" | 12 minutes | May 12, 2021 (2021-05-12) |
| 137 | 20 | "Short Stuff: Speed Reading" | 14 minutes | May 19, 2021 (2021-05-19) |
| 138 | 21 | "Short Stuff: Parachute Emergency!" | 13 minutes | May 26, 2021 (2021-05-26) |
| 139 | 22 | "Short Stuff: Runner's High" | 13 minutes | June 2, 2021 (2021-06-02) |
| 140 | 23 | "Short Stuff: Chinatowns" | 14 minutes | June 9, 2021 (2021-06-09) |
| 141 | 24 | "Short Stuff: Mojave Megaphone" | 13 minutes | June 16, 2021 (2021-06-16) |
| 142 | 25 | "Short Stuff: Chastity Belts" | 13 minutes | June 23, 2021 (2021-06-23) |
| 143 | 26 | "Short Stuff: Beast of Gevaudan" | 12 minutes | June 30, 2021 (2021-06-30) |
| 144 | 27 | "Short Stuff: Sulfanilamide Disaster" | 13 minutes | July 7, 2021 (2021-07-07) |