Friday's Highlights: 'Who Do You Think You Are?' on NBC.
FAMILY TREE: Archivist Kathy Lauder, right, helps Vanessa Williams research her ancestry on the season premiere of “Who Do You Think You Are?” at 8 p.m. on NBC.
Inside the Vault: The premiere of this new series focuses on “Gadget Obsessions” (7:30 p.m. WGN A).
Kitchen Nightmares: Chef Ramsay travels to Queens, N.Y., to help the inexperienced husband-and-wife owners of PJ's Steakhouse, an eatery intended to preserve the memory of a departed brother, in this new episode (8 p.m. Fox).
Super Bowl's Greatest Commercials: Viewers' votes determine the 10 best ads that have aired during the Super Bowls (9 p.m. CBS).
Modern Marvels: The new episode “American Trucking” follows country star Brad Paisley and his crew of truckers on the road between Little Rock, Ark., and Tulsa, Okla., as they race to his next concert (9 p.m. History).
A Barbara Walters Special: A Matter of Life and Death: Former President Bill Clinton, Robin Williams, David Letterman, Regis Philbin and Charlie Rose discuss their experiences as heart patients with Walters, who also discusses her own open-heart surgery in this new special (10 p.m. ABC).
The Bridge on the River Kwai: Alec Guinness stars as a British colonel leading fellow prisoners of war in building a railroad bridge for the Japanese, while an American escapee (William Holden) returns to destroy it. Jack Hawkins and Sessue Hayakawa costar in director David Lean's classic 1957 version of the Pierre Boulle novel (7 p.m. TCM).
Still Bill: Rare live performances highlight this portrait of Bill Withers, the singer-songwriter who walked away from stardom 25 years ago in his 40s, yet whose songs — which include “Lean on Me,” “Lovely Day,” “Just the Two of Us,” “Use Me” and “Ain't No Sunshine” — remain popular today (8:30 p.m. Showtime).
A Valentine's Date: Elisa Donovan and Kirstin Dorn star in this 2011 TV drama (9 p.m. Hallmark).
Pro basketball: The Clippers visit the Atlanta Hawks (4:30 p.m. FS Prime).
Photo: Chris Berkey / NBC