Lots of good stuff on TV tonight!

What’s on TV: Thursday
-Fox has Michael Jackson’s Private Home Movies (tonight, 8 ET/PT). My advice? Respect his privacy. After all, what could he possibly show, even on Fox, that you haven’t already seen before?
-Friends (NBC, 8 p.m. ET/PT) launches another romantic triangle in a sweeps-extended episode, as Ross (David Schwimmer) and Joey fall for a beautiful paleontologist (Aisha Tyler, who begins an extended run on the show). Soap stars Kyle Lowder and Matthew Ashford also appear and make a play for a suddenly Joey-fied Rachel.
-The night’s biggest guest, however, shows up on NBC an hour later as Madonna visits Will & Grace (9 p.m. ET/PT). She plays Karen’s new roommate, and there’s a duo if ever there was one. The episode is followed by a Will clip-show salute to the sitcom’s best guests.
-ABC inserts a special edition of PrimeTime Thursday (9 p.m. ET/PT) devoted to developments in the Laci Peterson case.
-You can think of tonight’s CSI (CBS, 9 ET/PT) as the show’s revenge on its sitcom competition. The victim is a comic.
-From punch lines to punches: The investigators on Without a Trace (CBS, 10 p.m. ET/PT) are looking for a missing boxer. Davis Henry stars as the absent welterweight.