Question: When was the second season of  the American-Canadian television show premiered in which Jennifer Spence has recurring roles and which  is promoted as TV's "first polyromantic comedy"?

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Stargate SG-1 (season 2): Season two of "Stargate SG-1", an American-Canadian television series, began airing on June 26, 1998 on Showtime.  The second season concluded after 22 episodes on February 10, 1999 on British Sky One, which overtook Showtime in mid-season.  The series was developed by Brad Wright and Jonathan Glassner, who also served as executive producers.  Season two regular cast members include Richard Dean Anderson, Michael Shanks, Amanda Tapping, Christopher Judge, and Don S. Davis.

Jennifer Spence: Jennifer Spence (born January 22, 1977) is a Canadian actress.  Her acting credits include playing the part of Dr. Lisa Park on the "Stargate Universe" television series.  Other television series in which she has had principal roles are "Exes and Ohs", "The 4400", "Reunion", "Write & Wrong", and recurring roles on "Killer Instinct", "DaVinci's Inquest", "You Me Her", and "Travelers".

Caught on Camera with Nick Cannon: Caught on Camera with Nick Cannon is an American documentary reality television show on NBC.  The show premiered on Friday, December 19, 2014.  The show is hosted by Nick Cannon and it tells stories that are captured on cell phones, dash cams, security cams, and by news crews from around the world.  The second season premiered on January 22, 2016.  Also included are popular videos from Vine.

The Family Crews: The Family Crews is a reality television show following the life of comic actor Terry Crews, his wife Rebecca, their eclectic and ever-changing family ranging in age from 22 to 3 years old.  The show premiered on BET Sunday, February 21, 2010, at 9 p.m.  The show was renewed for a second season, which premiered on March 6, 2011.

Christmas Icetastrophe: Christmas Icetastrophe (also titled Icetastrophe) is a 2014 American made for television disaster film directed by Jonathan Winfrey.  It first aired on Syfy on December 20, 2014.  Victor Webster and Jennifer Spence star as survivors of a meteorite strike that causes their town to flash freeze.

Stargate Atlantis (season 4): The fourth season of "Stargate Atlantis", an American-Canadian television series, began airing on September 28, 2007 on the US-American Sci Fi Channel.  The fourth season concluded after 20 episodes on March 7, 2008 on Sci Fi.  The series was developed by Brad Wright and Robert C. Cooper, who also served as executive producers.  Amanda Tapping (Col. Samantha Carter) joins the cast as a regular for 14 episodes, Jewel Staite (Dr. Jennifer Keller) was a recurring character for eleven episodes, while regular cast member Torri Higginson (Dr. Elizabeth Weir) was a recurring cast member for four episodes.  Other season four regular cast members include Joe Flanigan, David Hewlett, Rachel Luttrell and Jason Momoa.

Big Rich Texas: Big Rich Texas was an American reality television series on the Style Network that premiered on July 17, 2011.  The show is filmed in the Dallas/Fort Worth area of Texas.  The series follows five wealthy Texas women and their daughters.  The first season of the show premiered on July 17, 2011 following a spin off from the show Dallas Divas and Daughters that originally aired in 2009 on Bravo TV and The Style Network.  The second season debuted February 19, 2012 with new cast members: Deyanni, Amber and Shaye.  In 2014 Season 4 was green lit and ready for production.  The network negotiated bringing back Pamela Martin-Duarte and a new cast, with co star Bon Blossman and her daughter Whitney moving on to Whitney's Having a Baby.  Subsequently Big Rich Texas season 4 was put on hold due to the decision by NBC Universal to replace the Style Network with Esquire Channel in order to increase their much needed programming for Men.  3000 jobs were cut out at the Style Network due to the network changes.

You Me Her: You Me Her is an American-Canadian television show that revolves around a suburban married couple who is entering a three-way romantic relationship, otherwise known as a polyamorous relationship.  The series is set in Portland, Oregon and was created by John Scott Shepherd.  The series is also promoted as TV's "first polyromantic comedy".  On June 9, 2016, Audience Network renewed the series for a second and third season.  The second season premiered on February 14, 2017.

Stranger Things: Stranger Things is an American science fiction-horror web television series created, written, directed and co-executive produced by the Duffer Brothers, as well as co-executive-produced by Shawn Levy and Dan Cohen.  The first season stars Winona Ryder, David Harbour, Finn Wolfhard, Millie Bobby Brown, Gaten Matarazzo, Caleb McLaughlin, Natalia Dyer, Charlie Heaton, Cara Buono, and Matthew Modine, with Noah Schnapp and Joe Keery in recurring roles.  The second season will see Schnapp and Keery promoted to series regulars, along with the addition of Sadie Sink and Dacre Montgomery.

Adaalat (season 2): The second season of the Indian television courtroom drama series "Adaalat", premiered on June 4, 2016 on Sony TV.  The show aired on Saturday and Sunday.  Produced by Contiloe Entertainment, Ronit Roy reprised his character from the previous season.  Sameer Dharmadhikari, Rakshanda Khan and a host of actors in recurring roles.  The execution style and the sets of the show was more grand and matched international standards this season.

Supporting paragraphs: Jennifer Spence You Me Her
Answer: February 14, 2017