aired two-hour episodes on January 13 through January 27.^[10]

aired two episodes (the pilot on October 18 and the 2nd episode on October 21) before it was cancelled.

aired Clash of the Choirs for four consecutive nights starting on December 17, 2007.

aired Duel for six nights for the week starting on December 17, 2007.

premiered Sunday, January 6, 2008, at 9:00 pm Eastern/8:00 pm Central before moving to Mondays at 8:00 pm Eastern/7:00 pm Central.

premiered Sunday, January 13, 2008, at 8:00 pm Eastern/7:00 pm Central before moving to Mondays at 9:00 pm Eastern/8:00 pm Central.

Season 7 of was supposed to start in 2008, but delayed to 2009 due to the WGA strike.

premiered on January 1, 2008, with two 30-minute episodes. Then on January 9, 2008, it only aired one episode for the night.

premiered on January 8, 2008, with a two-hour premiere.

premiered on January 15 to 16, 2008 with two hour episodes each night.

aired quarterlife on February 26, 2008. After the first episode failed to earn the ratings the network had hoped, NBC announced that the series would be canceled after airing only one episode. Its remaining episodes would air on sibling channel Bravo.

aired a "sneak-peek" on Tuesday, March 18, 2008, following Dancing with the Stars at 10:30 pm Eastern/9:30 pm Central. It then moved to its regular timeslot on March 20 at 8:00 pm Eastern/7:00 pm Central with back-to-back episodes filling in for Ugly Betty through April 3.^[11]

On April 8, 2008, premiered Secret Talents of the Stars at 10 pm Eastern/9 pm Central. The show was cancelled the following day.

premiered on January 15, 2008, and January 16, 2008, with two-hour episodes each night.

premiered on December 12, 2007, at 9:00 pm Eastern/8:00PM Central before moving to Wednesdays at 8:00 pm Eastern/7:00PM Central.

had a two-hour season premiere (two episodes) on January 2, 2008.

aired back to back episodes on January 2, 2008.

moved to 9:00 pm Eastern/8:00 pm Central on February 28, 2008, replacing Supernatural.

aired a "sneak-peek" on Tuesday March 18, 2008, following Dancing with the Stars at 10:30 pm Eastern/9:30 pm Central. It then moved to its regular timeslot on March 20 at 8:00 pm Eastern/7:00 pm Central with back-to-back episodes filling in for Ugly Betty through April 3.^[12]

premiered on February 22, 2008, at 9:00 pm Eastern/8:00 pm Central, before moving to its regular timeslot on February 29, 2008, at 8:00 pm Eastern/7:00 pm Central.^[13]