TONIGHT'S MUST-SEE

Presidential debate, 3 p.m., ABC, CBS, NBC, Fox, PBS, CNN, Fox News Channel, MSNBC, C-SPAN, Current, BBC America. Here's the last of the four debates, the third with presidential candidates John McCain and Barack Obama. This one is at Hofstra University in Hempstead, NY. CBS' Bob Schieffer moderates.

"Chocolate News" debut, 7:30 p.m., Comedy Central. From the opening moments, with David Alan Grier delivering a brilliantly angry essay on the blanding of rap, it's clear that this is special. Grier goes back to the best years of "In Living Color." We're reminded of that here, with piercing looks at racial issues. Pseudo-reports range from the first black presidential candidate to an old-school rapper hired by "No Child Left Behind." There's even a summit on use of "the 'n' word." This is delivered with freshness and wit. Here is a rarity — something good enough to lead into "The Daily Show."

OF NOTE

"Raging Bull" (1980), 12:45 p.m., Independent Film Channel, Oceanic digital channel 675. Robert De Niro won an Oscar as boxer Jake La Motta in this Martin Scorsese classic.

"Something New" (2006), 3 p.m., Oxygen. A movie for debate- skippers. It drew praise for a fresh take on romance between a white man (Simon Baker) and a black woman (Sanaa Lathan).

"Pushing Daisies," 7 p.m., ABC. Olive, who's been in a convent this season, feels a "suicide" there was murder; Ned and friends go undercover.

"The New Adventures of Old Christine," 7 p.m., CBS. Christine reluctantly dates a reptile expert.

"Gary Unmarried," 7:30 p.m., CBS. To get his pool table back, Gary threatens to show spicy photos of his ex-wife.