Prof. Pierce
Alan Alda's public persona has always reminded me of a professor at a liberal arts college, an image that's only strengthened by "Alan Alda and the Actor Within You: A YoungArts Masterclass," a new special in which the Emmy winner guides six young actors through a series of improv exercises. Hurry, registration is limited. 6:30 p.m. HBO
Down to the wire
It's the last chance for the six finalists to perform on "America's Got Talent," the variety show that has yet to pluck someone out of obscurity and launch them into true stardom. Oh, well. It's still fun to observe the G-rated version of judge Howard Stern. Results will be announced Wednesday. 8 p.m. KARE, Ch. 11
Slam dunk
The 18-time Grand Slam winner shares the wealth during "Serena Williams Signature Statement Collection," in which viewers can get their hands on jewelry, apparel and accessories from the recent U.S. Open champ's various lines. I hope and pray that her colorful headbands will be available. 8 p.m. Home Shopping Network
Neal Justin
