Columns: Series # | Season # | Episode title | Written by | Directed by | U.S. viewers (millions) | Original air date
66 | 1 | " The Butterfly Effect (Part 1) " | Sheila Lawrence & Henry Alonso Myers | John Terlesky | 5.01 | October16,2009 | 67 | 2 | " The Butterfly Effect (Part 2) " | Sheila Lawrence & Henry Alonso Myers | Victor Nelli, Jr. | 5.18 | October16,2009 | 68 | 3 | " Blue on Blue " | Abraham Higginbotham | Victor Nelli, Jr | 4.55 | October23,2009 | 69 | 4 | " The Weiner, the Bun, and the Boob " | Brian Tanen | Wendey Stanzler | 4.50 | October30,2009 | 70 | 5 | " Plus None " | Cara DiPaolo | Paul Holahan | 4.76 | November6,2009 | 71 | 6 | " Backseat Betty " | Tracy Poust & Jon Kinnally | John Putch | 4.46 | November13,2009 | 72 | 7 | " Level (7) with Me " | Chris Black | John Fortenberry | 3.39 | November27,2009 | 73 | 8 | " The Bahamas Triangle " | Sheila Lawrence | Victor Neili, Jr. | 4.23 | December4,2009 | 74 | 9 | " Be-Shure " | Gail Lerner | David Dworetzky | 4.80 | December11,2009 | 75 | 10 | " The Passion of the Betty " | David Grubstick & Chris Black | S.J. Clarkson | 5.13 | January6,2010 | 76 | 11 | " Back in Her Place " | Abraham Higginbotham | Richard Heus | 4.67 | January13,2010 | 77 | 12 | " Blackout! " | Cara DiPoulo | John Putch | 4.59 | January20,2010 | 78 | 13 | " Chica and the Man " | Gail Lerner | Victor Nelli, Jr. | 4.34 | February3,2010 | 79 | 14 | " Smokin' Hot " | Brian Tanen | John Scott | 4.68 | February10,2010 | 80 | 15 | " Fire and Nice " | Erika Johnson | John Terlesky | 4.10 | March10,2010 | 81 | 16 | " All the World's a Stage " | Abraham Higginbotham & David Grubstick | Andy Wolk | 3.33 | March17,2010 | 82 | 17 | " Million Dollar Smile " | Henry Alonso Myers & Chris Black | Paul Holahan | 4.56 | March24,2010 | 83 | 18 | " London Calling " | David Grubstick & Sheila Lawrence | Mark Worthington | 4.01 | March31,2010 | 84 | 19 | " The Past Presents the Future " | Jon Kinnaly & Tracy Poust | Paul Holahan | 4.03 | April7,2010