Coverage options are plentiful on Tuesday

The presidential campaign has been one of the few hits of the fall TV season, so it's no surprise that broadcast and cable networks are going all-out with their coverage of returns Tuesday night.

Four of the five broadcast networks will pre-empt their prime-time schedules to cover the election, and the cable news channels will go all-election, all day. Here's a rundown of when coverage starts and who's going to be in front of the camera (all times Eastern).

ABC: Prime-time coverage beginning at 7 p.m. and running until at least 2 a.m. "World News" anchor Charles Gibson will anchor with Diane Sawyer and George Stephanopoulos. ABC will also show its coverage on three giant video walls in New York's Times Square, with "Good Morning America Weekend" anchor Bill Weir getting crowd reaction to the results there.

CBS: Coverage starts at 7 p.m., led by Katie Couric, Bob Schieffer and Jeff Greenfield. Couric will switch to a webcast after over-the-air coverage ends at 2 a.m.

FOX: Fox News anchor Shepard Smith will lead prime-time coverage from 7 to 10 p.m.

NBC: Coverage starts at 7 p.m. with "NBC Nightly News" anchor Brian Williams, Tom Brokaw, Ann Curry, Chuck Todd and Andrea Mitchell. The network will project a map of the United States onto the ice rink at Rockefeller Plaza, turning states red or blue as they're called for John McCain or Barack Obama.

The CW: New episodes of "90210" and "Privileged" will air as scheduled, but they'll be slightly shorter than usual to allow affiliates to break in with election updates.

PBS: Jim Lehrer anchors three hours of coverage beginning at 9 p.m.

CNN: Like the other cable news networks, CNN will have wall-to-wall coverage of the election all day. Wolf Blitzer will be the ringmaster for the night's coverage starting at 6 p.m.

Fox News: Brit Hume, who's retiring from his daily anchor duties at year's end, leads the network's prime-time coverage, also starting at 6 p.m.

MSNBC: NBC's sibling gets a jump on its cable rivals by starting nighttime coverage at 5 p.m. "Race to the White House" anchor David Gregory will anchor along with Chris Matthews, Keith Olbermann, Rachel Maddow and Eugene Robinson.

Comedy Central: Jon Stewart and Stephen Colbert team up for "Indecision 2008: America's Choice," a live special airing at 10 p.m. and repeating at 11. The show will also be simulcast on MTV's JumboTron screen in Times Square.

BBC America: The Beeb's David Dimbleby and "BBC World News America" anchor Matt Frei will anchor starting at 6 p.m., with analysis from Ted Koppel and appearances from the likes of Ricky Gervais, Christopher Hitchens and former Sen. Bill Bradley.