The Defenders (8pm, CBS) - Nick (Jim Belushi) reluctantly defends a scornful judge, played by Dan Aykroyd, who is charged with multiple counts of drug possession.
Who Do You Think You Are (8pm, NBC) - The Vanessa Williams and Tim McGraw episodes this season have been great. Tonight, Rosie O'Donnell traces her roots, focusing on her late mother's life. The journey takes her to Ireland. There was a whole lot of crying in the previews.
Fringe (9pm, Fox) - Mysterious events lead to a woman in mourning over the death of her husband. Peter and Olivia try to bridge the emotional chasm between them.
Law & Order: UK (9pm, BBC America) - In an episode called "Masquerade," the stabbing of a student launches a probe that uncovers allegations of rape and murder.
Ricky Gervais Show (9pm, HBO) - Some of the topics on this hilarious show include Karl's bout with kidney stones, living things that resemble other things, and Noah's Ark.
Real Time with Bill Maher (10pm, HBO) - Guests are reporter Michelle Caruso-Cabrera, editor John Heilemann, talk-show host Tavis Smiley, and filmmaker Kevin Smith. Here's last week's Overtime, if you missed it.