Phoebe thinks she knows who the father of Rachel’s baby is on Friends (8 p.m., NBC). On Will & Grace (9 p.m., NBC), Will goes way back with a new co-worker and Grace doesn’t know what to get Nathan for his birthday. CSI (9 p.m., CBS) has a familiar story about a college intern who disappears from her apartment without a trace. On ER (10 p.m., NBC), Carter has to clean up a tragic mess, Benton gets some shocking news and Kovac sees a side of Abby he doesn’t like. Frontline (9 p.m., PBS, check local listings) presents “Target America,” a report on terrorism that was made before the Sept. 11 attacks, but has new relevence.
CBS promos next week’s “Survivor” premiere with Survivor: Countdown to Africa (8 p.m., CBS), which features yet another reunion of tribe members from the first two installments, as well as a look at the 16 new contestants.
Phillies at Braves (7:30 p.m., TBS)
Panthers at Flyers (7 p.m., ESPN2)
Rosie O’Donnell (syndicated) Jennifer Jason Leigh, Steve Zahn
David Letterman (CBS) Owen Wilson, Ryan Adams
Jay Leno (NBC) Tim Allen, Jennifer Esposito, Charlotte Church
Politically Incorrect (ABC) The Rev. Jesse Jackson
Conan O’Brien (NBC) Will Ferrell, Jeremy Piven
Craig Kilborn (CBS) Melissa Joan Hart
All times Eastern unless noted.