Here's what we'll be watching ...
4:30 p.m., FOX
8:30 p.m., NBCAmy Poehler) gets help from Dave and Andy (Chris Pratt) in catching a pesky vandal and Ann (Rashida Jones) throws a Halloween party.
9 p.m., CWBenjamin Button storyline -- Dean (Jensen Ackles) loses a poker game against a witch -- and he and Sam (Jared Padalecki) age rapidly!
9:30 p.m., NBCTina Fey) and Jack (Alec Baldwin) keep the star search going -- and end up down South, in Kenneth's (Jack MacBrayer) hometown.
Series premiere, 10:30 p.m., FXnew comedy centers around three guys and a fantasy football league. Go ahead, gents. Pinch yourselves.
Also on the airwaves ...
FlashForward, 8 p.m., ABC
Survivor, 8 p.m., CBS
Community, 8 p.m., NBC
The Vampire Diaries, 8 p.m., CW
Grey's Anatomy, 9 p.m., ABC
CSI, 9 p.m., CBS
The Office, 9 p.m., NBC
Private Practice, 10 p.m., ABC
The Mentalist, 10 p.m., CBS
The Real Housewives of Atlanta, 10 p.m., BRAVO
Ace of Cakes, Season 7 finale, 10 p.m., FOOD
It's Always Sunny in Philadelphia, 10 p.m., FX
Project Runway, 10 p.m., LIFETIME
What are you watching tonight?