8 p.m., FOXJohn Francis Daley) does some soul-searching—and makes a major life decision.
8 & 9 p.m., NBC
The Office rerunsRelive the highlights of Jim (John Krasinski) and Pam's (Jenna Fischer) big year: Watch their Niagara Falls wedding at 8 p.m. and the delivery of baby Cecelia at 9 p.m.
8 p.m., CW
9 p.m., CBSAunjanue Ellis).
9 p.m., FOXJohn Noble) flashes back to the 1980s as he tells Olivia (Anna Torv) the story of Peter's mysterious childhood.
Also on the airwaves...
FlashForward, 8 p.m., ABC
Survivor, 8 p.m., CBS
Grey's Anatomy, 9 p.m., ABC
Supernatural, 9 p.m., CW
Private Practice, 10 p.m., ABC
CSI, 10 p.m., CBS
The Marriage Ref, 10 p.m., NBC
The Real Housewives of New York City, 10 p.m., BRAVO
Project Runway, 10 p.m., LIFETIME
Randy Jackson Presents: America's Best Dance Crew, 10 p.m., MTV
NBA Basketball: Magic v. Mavericks, TrailBlazers v. Nuggets
NHL Hockey: Thrashers v. Capitals
What are you watching tonight?
Follow TV.com writer Stefanie Lee on Twitter: @StefAtTVDotCom