ObamaESPNWell, here it is, the full weight of March Madness, and an all day roster of NCAA tournament games that start at noon and go to midnight on four different networks – one on broadcast and three on cable. Each of the tournament games will be available, but you may just have to hunt for where the network is on your tuner.

Everyone by now has filled out a bracket, including the President, who put Indiana, Ohio State, Florida and Louisville in the Final Four Wednesday on ESPN, with Louisville to win it all.

Kicking off play today is Valparaiso vs. Michigan State (CBS, 12:15 p.m.), followed by Bucknell vs. Butler (truTV, 12:40 p.m.), Wichita State vs. Pitsburgh (TBS, 1:40 p.m.), New Mexico State vs. Saint Lewis (TNT, 2:10 p.m.), Saint Mary’s vs. Memphis (CBS, 2:45 p.m.), Davidson vs. Marquette (truTV, 3:10 p.m.), Southern University vs. Gonzaga (TBS, 4:10 p.m.), Oregon vs. Oklahoma State (TNT, 4:40 p.m.), North Carolina A&T vs Louisville (TBS, 6:50 p.m.), South Dakota State vs. Michigan (CBS, 7:15 p.m.), Belmont s. Arizona (TNT, 7:20 p.m.), California vs. UNLV (truTV, 7:27 p.m.), Missouri vs. Colorado State (TBS, 9:20 p.m.), Akron vs. Virginia Commonwealth (CBS, 9:45 p.m.), Harvard vs. New Mexico (TNT, 9:50 p.m.) and Montana vs. Syracuse (truTV, 9:57 p.m.).

With all this there’s only room for one NIT game: Denver at Maryland (ESPNU, 7 p.m.) ,and some questionable sports to compete with it: the Winter X Games (ESPN, 7 p.m.) from Tignes, France and two hours of a Cheerleader Competition (ESPN2, 8 p.m.).

Somebody gets eliminated after their Beatles night performance on “American Idol” (Fox, 8 p.m.) and two ex-contestants perform, Jessica Sanchez and Casey Abrams.

Damon takes Elena to New York City on a new episode of “The Vampire Diaries” (The CW, 8 p.m.).

Dean Pelton wants to recruit a rich student on “Community” (NBC, 8 p.m.).

Apparently they’ve run out of celebrities, so it’s back to regular people — regular extreme people — participating on “Wife Swap” (ABC, 8 p.m.).

Skip still needs to complete an assignment to get his college diploma on “1600 Penn” (NBC, 9:30 p.m.).

Meredith Grey is close to giving birth on “Grey’s Anatomy” (ABC, 9 p.m.) and everybody’s fretting about it.

The latest tempest on “Scandal” (ABC, 10 p.m.) involves a Supreme Court nominee’s affair with Olivia’s new client, played by Lisa Edelstein, who has been doing D.C. scandals since the first episode of “The West Wing.”

The stated theme on “Glee” (Fox, 9 p.m.) are guilty pleasures such as Wham’s “Wake Me Up Before You Go-Go” (Most weeks, it’s just not stated).

Gators are fighting back against the “Swamp People” (History, 9 p.m.).

With no immediate deadly storm to report “Forecasting the End” (Weather Channel, 9 p.m.) gets you worried about something more celestial: planets hitting Earth.

The success of the miniseries may be a boon to contestants on season two of “The American Bible Challenge” (GSN, 9 p.m.), hosted by Jeff Foxworthy.

If we can’t have spring weather, the designers on “Project Runway” (Lifetime, 9 p.m.) will at least design spring clothes.

Dean Stockwell is the star on Turner Classic Movies tonight, with “Compulsion” (8 p.m.), “Down to the Sea in Ships” (10 p.m.), “Kim” (12:15 a.m.), “The Boy with the Green Hair” (2:15 a.m.) and “The Careless Years” (3:45 a.m.).

Daytime Talk

Kelly & Michael: Bruce Willis, Anne Hathaway, Adam Levine (rerun). The View: Lori Greiner, Daymond John, Mark Cuban (rerun). Ellen DeGeneres: Steve Harvey, Mackelmore & Ryan Lewis (rerun).

Late Talk

David Letterman: Tina Fey, Jesse Tyler Ferguson, Solange (rerun). Jay Leno: Dwayne Johnson, Chris Paul, Atlas Genius. Jimmy Kimmel: Ellen Pompeo, Sean Lowe, Lianne La Havas. Jimmy Fallon: Drew Barrymore, Thandie Newton, Brandi Carlile, Leo Nocentell.  Craig Ferguson: Quentin Tarantino (rerun). Carson Daly: Angel Haze, Sirah, Big Black Delta, Grape St. Tavis Smiley: Angela Bassett, Antoine Fuqua. Jon Stewart: Paul Rudd (rerun). Stephen Colbert: Paola Antonelli (rerun). Conan O’Brien: Amy Poehler, Kevin Pollak, Ke$ha (rerun). Chelsea Handler: Selena Gomez, Vanessa Hudgens, Bobby Lee Morgan Murphy, Kurt Braunohler.