30 Rock (8pm, NBC) - Season 6 is back as the TGS gang returns to work after the holiday break. Liz adopts a new mindset and Jenna gains newfound fame as a hateful celebrity judge. Meanwhile, Kenneth takes a day off to ready for the Rapture.
Rob! (8:30pm, CBS) - A new sitcom starring "Saturday Night Live" alum Rob Schneider playing a confirmed bachelor who has just married into a tight-knit Mexican-American family.
Paradise Lost 3: Purgatory (9pm, HBO) - The much-anticipated third part in the documentary series following the conviction of the West Memphis Three -- three teenagers from Jonesboro, Arkansas, who were found guilty of murdering three young boys in 1993, but whom most believe to be innocent of the crimes. In this installment, the legal teams fight to overturn the sentences using changes in witness testimony and DNA evidence that was not available at the original trial. Note: The three men entered Alford pleas in the case and were released from prison in August 2011, after this film was completed. Filmmakers Joe Berlinger and Bruce Sinofsky amended the documentary with footage from the release.
The Finder (9pm, Fox) - In the premiere of a new series about an eccentric, reclusive veteran with an uncanny gift for finding people and things, a teen asks Walter Sherman (Geoff Stults) to locate his father, who went missing after his plane crashed in the Florida wilderness. Based on "The Locator" novels by Richard Greener. Check out Adrienne's review.
Person of Interest (9pm, CBS) - The episode information simply says "Reese and Finch involve Carter in a case," so I guess that means Reese survived his gunshot wounds from the previous episode...
Have You Heard from Johannesburg (2am, UNC-TV) - This is a five-part Independent Lens series tracing the anti-Apartheid movement, which UNC-TV is not only showing at bizarre times but apparently also a little out of order. This is the best I can figure out: tonight you get Part 2, "The New Generation" (which also airs at midnight on 1/15 on UNC-MX). Part 1, "The Road to Resistance," airs 1/15 at 11 p.m. on UNC-MX. Part 3, "From Selma to Soweto," airs on 1/21 at 11:30 p.m. on UNC-MX. Part 4, "The Bottom Line," airs the day before, 1/20, at 2 a.m. on UNC-TV and again on 1/22 at 12:30 a.m. on UNC-MX. The final part, "Free at Last," airs on 1/27 at 2 a.m. on UNC-TV and again on 1/28 at 11 p.m. on UNC-MX. Clear?