Buffy and Riley have an awkward time trying to get used to each other's secret identities on a rerun of Buffy the Vampire Slayer (8 p.m., WB). On a rerun of Angel (9 p.m., WB), Faith comes to town; mayhem and murder follow. P.O.V. (check local times, PBS) presents "Dreamland," Lisanne Skyler's documentary about Las Vegas. The new series Confidential (10 p.m., VH1) is like a pop-music version of "Unsolved Mysteries." Titillating rumors are examined, for our edification. This week: Were Bob Marley and Kurt Cobain really murdered?
Britney Spears, Jennifer Love Hewitt, 'N Sync, 98 Degrees and a bunch of other middle-school faves appear on the Teen Choice Awards (8 p.m., Fox).
Braves at Rockies (9 p.m., TBS)
Rosie O'Donnell (syndicated) Rob Lowe (rerun)
David Letterman (CBS) Jon Favreau, Stone Temple Pilots
Jay Leno (NBC) Kirsten Dunst, Taye Diggs
Politically Incorrect (ABC) Joe Rogan, David McReynolds
Conan O'Brien (NBC) Bob Costas, Kristen Johnston