CW | 8:00 pm
The CW expands its primetime series programming to Saturday this season, moving this long-running game show into a new time period, starting tonight with two back-to-back episodes. In the first, host Aisha Tyler welcomes guest comic Heather Anne Campbell, who joins cast regulars Ryan Stiles, Wayne Brady and Colin Mochrie for a series of improv games. Kevin McHale ("Glee") also makes a guest appearance. Immediately following, a second new episode features a guest appearance by boxing champ Laila Ali, with guest comic Jeff Davis getting his improv on with the guys.