8 p.m., NBCKristen Wiig hosts this Christmas special as her most-annoying character, Gilly— but at least we'll get to see Steve Martin, Alec Baldwin, and a host of classic SNL holiday skits.
10 p.m., CBSSimon Baker) in the head during an investigation, causing a childhood flashback and a resurgence of his daddy issues.
10 p.m., MTVthe part where Snooki gets punched—but at least you'll get to see what she did in the nightclub to deserve it.
11:35 p.m., CBSSherlock Holmes' Jude Law—but John Krasinski is on The Tonight Show with Conan O'Brien. Such a toss-up.
Also on the airwaves ...
Survivor, 8 p.m., CBS
CSI, 9 p.m., CBS
The Real Housewives of Orange County, 10 p.m., BRAVO
NBA Basketball: Orlando Magic vs. Miami Heat, Phoenix Suns vs. Portland Trailblazers (Check local listings for times and networks)
What are you watching tonight?