Drew Peterson: Untouchable (8pm, Lifetime) - Former Illinois cop Drew Peterson becomes the suspect in the murder of his third wife and in the disappearance of his fourth wife. Based on a true story. And starring Rob Lowe as Drew Peterson. Adrienne has a review.
My Cat From Hell (8pm, Animal Planet) - If you're even the least bit interested in cats, this is a great show with cat behaviorist Jackson Galaxy. Check it out.
Betty White's 90th Birthday Tribute (8pm, NBC) - If you missed this earlier in the week, catch it tonight. There were some really nice moments. "Betty White's Off Their Rockers," a show in which elderly people prank unsuspecting bystanders, airs immediately after.
Snow Beast (9pm, Syfy) - A scientist (John Schneider) and his research team try to evade a mysterious predator that appears to be responsible for a series of deaths after they travel to the Canadian wilderness to study a species of lynx, which have mysteriously disappeared from their territory.
Bayou Billionaires (9pm, CMT) - The premiere of a new reality series following a Louisiana family who strikes it rich and experience the perks of living as billionaires. We previewed it.
Pit Bulls and Parolees (10pm, Animal Planet) - Tia needs all the help she can get to find a mother and her puppies that were dumped in the Mojave Desert.
Saturday Night Live (11:29pm, NBC) - A repeat tonight. Emma Stone hosts, musical guest is Coldplay.
Austin City Limits (Midnight, UNC-TV) - Folk-rockers Fleet Foxes perform , as does singer-songwriter Joanna Newman.