30 Rock (8pm, NBC) - Jack and Liz head to Florida to handle his late mother's estate, only to unearth a stunning discovery about her. Tracy and Jenna supervise the "TGS" staff in their absence, leading to disastrous results for Kenneth.
American Idol (8pm, Fox) - Auditions continue.
Last Resort (8pm, ABC) - Chaplin attempts to surrender the Colorado, while Kyle and Admiral Shepard target the president.

Oprah's Next Chapter (9pm, OWN) - Part one of a two-part interview in which Oprah Winfrey interviews cyclist Lance Armstrong (right) in his hometown of Austin, Texas. In the 2.5-hour interview (part two airs tomorrow night), Armstrong comes clean about doping. For OWN newbies, the network can be found on channels 259 and 1259 on Time Warner Cable; channel 279 on DirecTV; channels 170 and 1170 on AT&T U-verse; and channel 189 on Dish Network.
Suits (10pm, USA) - "Suits" returns with a criminal case that resonates with Mike, making it difficult for him to separate his feelings from the case.
Scandal (10pm, ABC) - A flashback reveals more details about the fixed election. Also, Edison makes a surprising allegation when he has a dispute with Olivia.
Legit (10:30, FX) - A new sitcom about a crass comedian struggling for legitimacy in his life and career. In tonight's opener, Jim takes his wheelchair-dependent friend to a Las Vegas brothel.
Burn Notice (9pm, USA) - The gang travels to Panama in the season finale, but their target discovers their plans and sets a trap.
Time Machine Chefs (9pm, ABC) - Accomplished chefs must create complicated meals in different historical settings, using only basic kitchen equipment. No Cuisinarts! The chefs are Art Smith, Chris Cosentino, Ilan Hall and Jill Davie.
Rock Center with Brian Williams (10pm, NBC) - This preview of the 2012 Summer Olympics includes an interview with British filmmaker Danny Boyle, who is directing the opening ceremonies, and a conversation with composer John Williams, writer of "Olympic Fanfare and Theme." Also, Tamron Hall reports on Olympic swimmer (and N.C. State champion) Cullen Jones' (right) mission to stop the high number of African-American children dying in the water, and then a profile of Billy Fiske, an Olympic champion who was killed in World War II. Click below to watch a clip from the Cullen Jones segment. (Photo by Associated Press)
Big Brother (9pm, CBS) - The 4th installment begins with 12 new house guests and four returning players who are among the most successful to ever compete in the house. Twist: the four players from past seasons will play for their own separate prize and not the $500,000 grand prize. Julie Chen (aka Chenbot, left) returns as host.
in which rebellious rock stars, like Jim Lindberg from
Project Runway (9pm, Lifetime) - The designers use computer technology to help them create signature fabric designs, but they must also venture out into the city to capture the stories behind their inspirations.
Nick News with Linda Ellerbee: The Story of September 11, 2001 (9pm, Nickelodeon) - Kids too young to remember the attacks of September 11 discuss their questions about the event with journalist Linda Ellerbee.
Rising: Rebuilding Ground Zero (8pm, Discovery) - A three-hour documentary series chronicling the construction of a 16-acre complext at the site of the 9/11 terror attacks in New York City. All three parts air tonight from 8 to 11 p.m. Here's
Detroit in Overdrive (8pm, Planet Green) - All three installments tonight in a new three-part documentary series examining efforts to revitalize the city of Detroit. In the first, Kid Rock launches a beer label (