TONIGHT'S MUST-SEE

"America's Got Talent" season opener, 8 p.m., NBC. After being an amiable hit last summer, this show is back. It's a wide-open competition, with few limits. The changes should be improvements: Jerry Springer replaces Regis Philbin as host; Sharon Osbourne replaces Brandy as a judge, alongside Piers Morgan and David Hasselhoff.

"The Shield," 7 p.m. FX. The season finale finds Vic scrambling to save his job, unaware that his family is threatened by Shane's loose tongue. The result is both fierce, nasty and well made, a strong finish to an excellent season.

OF NOTE

"The George Lopez Show," 7 p.m., ABC. Before seeing Lopez get an ALMA special award, we can catch a rerun of his show, which won't be back next season. In this episode, his wife frets about aging.

"Fletch" (1985, AMC), 5 p.m. and "One Fine Day" (1996, ABC Family), 8 p.m. There's something to be said for lightweight fun. Both of these are entertaining. In "Fletch," Chevy Chase plays an investigative reporter; in "One Fine Day," George Clooney and Michelle Pfeiffer are single parents, meeting on a busy day.

ALMA Awards, 8 p.m., ABC. Expect a fast-paced show. There are plenty of awards, alongside music by Beyonce, Prince, Los Lonely Boys, Dashboard Confessional, Billy Gibbons and Calle 13. Eva Longoria, of "Desperate Housewives," hosts and special awards go to George Lopez and Los Lobos.

"Kathy Griffin: Everybody Can Suck It" (8 p.m.) and "Kathy Griffin: My Life on the D-List" season opener (9 p.m.), Bravo. Griffin has a wonderful knack for turning celebrity encounters into comedy material. First comes a stand-up special in which she has sly fun talking about Lindsay Lohan, Ann Coulter and others. Then her reality show starts a new season; Griffin begins post-divorce life, including a bigger staff and a Carnegie Hall concert. For the latter, she confers with Whoopi Goldberg and Joan Rivers and tries to meet Liza Minnelli.

"Independent Lens: La Lupe: Queen of Latin Soul," 10 p.m., PBS. Born in a low-income part of Cuba, Guadalupe Yoli transformed herself into La Lupe, a zealous and outspoken singer, challenging Celia Cruz for Latina fame. Personal and family troubles followed, however; she was penniless long before her death in 1992, at 51. This film includes old footage and talks to people who knew her.