TONIGHT'S MUST-SEE

"High School Musical 2," 8 p.m., Disney Channel. Bright and bouncy, this sequel will delight fans of the original. It will even modestly entertain some cynics. Yes, the story is lame, and the adults are overwrought. That was true of the original, too. Making up for that: A bubbly score, with nine likable songs from six different writing teams ... vibrant direction and choreography from Kenny Ortega ... and an immensely likable cast. Zac Efron — who co-stars in "Hairspray" — has helped steer his generation toward musicals. He and Vanessa Hudgens are perfect as beautiful teens in love and angst. This time, they're separated by the scheming Sharpay. The film starts with a vibrant end-of-school number, then settles into summer. Everyone has jobs at the country club, which is Sharpay's turf. She stirs discontent. Even then, you'll guess that this will all work out. You'll also guess that kids will see this film more than once.

OF NOTE

Football, 2 p.m., Fox. This exhibition game has the Minnesota Vikings at the New York Jets.

"The Untouchables" (1987), 5 and 7:30 p.m., Bravo. Director Brian De Palma and writer David Mamet revived the story of crime fighter Eliot Ness, with a tough, solid film. Kevin Costner stars. The great supporting cast has an Oscar-winning Sean Connery, plus Robert De Niro, Andy Garcia and Charles Martin Smith.

"Ghost Whisperer," 7 p.m., CBS. When a jewelry store employee is killed, shortly after a robbery, his ghost begins to make ominous requests.

"Jericho," 8 p.m., CBS. After being interrogated by Jake, Hawkins finally reveals details of the bomb plot.

"George Lopez," 8 and 8:30 p.m., ABC. Both reruns have key guest stars opposite George's mom. In the first, she fumes at the new maid (Barbara Eden); in the second — postponed from last week — she meets her long-ago love, played by Jerry Springer.

"Las Vegas," 8 p.m., NBC. The guys compete to see who is the best security officer. Meanwhile, John Legend performs as Mary tries to sell the last piece of property.

"Monk," 9 p.m., USA Network. Kids think they've found a treasure map, but it leads them to trouble.

"Law & Order: Criminal Intent," 9 p.m., NBC. Shortly after breaking up a robbery, a police recruit is killed.

"Psych," 10 p.m., USA Network. When a food critic is killed a chef is the prime suspect.