Mad Men

Mad Men
10/9c AMC
Betty's slipping-into-senility father (Ryan Cutrona), who's become a bit of a nuisance around the Draper home, pushes Don's buttons, which leads to an encounter with the man of the house. Peggy also has a domestic issue: She's looking for someone with whom to share her swinging bachelorette pad. On the work front, a new client with money to burn has great expectations in regard to the firm, and Sal is handed a plum assignment when the director on a soft-drink ad drops out to shoot a picture in Hollywood. — Ray Stackhouse

Nick News with Linda Ellerbee

8/7c Nickelodeon
The current recession isn't just a problem for adults, because what affects parents also affects their children. Tonight kids share their fears, shame and guilt. Some express hope for the future, while others share their concerns that their quarreling parents will divorce or that their families won't find a new house. Children also discuss sacrifices they're making, such as birthday parties, family trips and college funds. Included: Psychologist Jeff Gardere gives tips for coping with stress. — Jennifer Sankowski

Shark Tank
9/8c ABC
 When two brothers from Brazil come calling with an idea for an Internet company, the Sharks get ready to sink their teeth in. But in typical feeding-frenzy fashion, the Sharks wind up turning on each other before a deal can be struck. And in another pitch, an entrepreneur from Iowa touts a piece of fitness equipment, but is it enticing enough to make the Sharks take the bait? — Joe Friedrich

Jerry Lewis Telethon
9/8c Syndicated (check local listings)
This is Jerry's 44th Labor Day labor of love, but only his third without Ed McMahon. (Ed, who passed away in June, first appeared on the telethon in 1967 and was Jerry's primary cohost from 1973 through last year.) But Jerry's kids are still here, and that's what's most important. Also back are cohosts Tom Bergeron, Jann Carl, Billy Gilman, Nancy O'Dell, Alison Sweeney and Ace Young, and the performing lineup is scheduled to include the rock bands 3 Doors Down and Starship. — Paul Droesch

Masterpiece Mystery!
9/8c PBS
Series 2 of the British mystery Inspector Lewis kicks off with "Music to Die For," a tasty mystery in which the onetime Insp. Morse sidekick (Kevin Whately) and his assistant, Hathaway (Laurence Fox), play connect-the-dots with the death of an Oxford professor, an illegal no-rules boxing ring, the Stasi (East Germany's secret police) and a figure from Lewis' past. — Jeff Gemmill

HGTV Design Star
10/9c HGTV
The final three designers get into the Hollywood spirit as they take on high-profile clients in tonight's challenge, which finds them making over rooms for celebrities. The trio are commissioned to decorate an office for Kathy Griffin, a guest room for Tiffani Thiessen and a nursery for Jason Priestley. The players must maximize their $20,000 budget and 30-hour deadline to land a spot in the finale. — Brie Hearn