Broken Tail: A Tiger's Last Journey (8pm, UNC-TV) - In this "Nature" special, wildlife filmmaker Colin Stafford-Johnson follows the trek of Broken Tail, a 2-year-old tiger that disappeared from a tiger reserve in India and was killed by a train 100 miles away. Stafford-Johnson had spent 600 days filming Broken Tail and his family prior to the disappearance.
Amazing Race: Unfinished Business (8pm, CBS) - The 18th season starts with 11 former losing teams getting a second chance at the $1 million prize. The race starts in Palm Springs, California, and continues to Sydney, Australia, where the teams swim with sharks.
Saturday Night Live Backstage (9pm, NBC) - A two-hour behind-the-scenes special that focuses on the guest host experience. Told through clips and interviews.
Big Love (9pm, HBO) - Barb's choice of an ally in her pursuit of the priesthood displeases her mother (Ellen Burstyn) and Bill faces a Mormon boycott of his stores.
Episodes (9:30pm, Showtime) - In the season finale, the disastrous "Puck!" pilot wraps and a disappointed Sean (Stephen Mangan) and Beverly (Tamsin Greig) prepare to return to London. A final goodbye between Matt LeBlanc and Sean (left) takes an unexpected turn thanks to a missing Jaguar, a red-nosed reindeer, and cinnamon. There's some really funny physical comedy in this episode. Looking forward to a Season 2!
CSI: Miami (10pm, CBS) - The man who murdered Horatio's returns and spreads violence across Miami. Add in a ticking puck at an NHL All-Star game and we might have another "Threat Level Midnight" on our hands. Oops, wrong network.
Brothers & Sisters (10pm, ABC) - Nora is torn over a possible reconnection with her long-ago boyfriend Brody (Beau Bridges), and Justin tries to help a homeless veteran who doesn't want his help. Directed by Matthew Rhys, who plays Kevin on the show.
Brooke Cain isn't always proud of the number of hours she logs in front of the TV, but her loss of brain cells can be your gain. From reality shows to sitcoms to the more serious stuff, Brooke keeps her DVR smoking so that she can help keep you in the know. Brooke also tweets for Happiness is a Warm TV (you can follow