When: Sunday, 6 p.m. (kickoff is 6:29). Fox (Joe Buck and Troy Aikman).

Who: Green Bay Packers (NFC No. 6 seed) vs. Pittsburgh Steelers (AFC No. 2 seed). The Packers have won three Super Bowls, the Steelers six. Green Bay is a 2 1/2-point favorite.

Where: Dallas Cowboys Stadium, Arlington, Texas.

Music: The Black-Eyed Peas is the halftime act. Fergie is the first woman on the halftime stage Janet Jackson and her infamous wardrobe malfunction in 2004. Usher and Slash are expected to make guest appearances. Christina Aguilera will sing the National Anthem, and Lea Michelle will sing “America The Beautiful.” Keith Urban, Faith Hill and Maroon 5 will perform during the pregame show.

Ads: TV commercials coast up to $3 million per 30 seconds of ad time. Advertisers’ social-networking lead-up and follow-up to their game ads are going non-stop on Facebook, Twitter, YouTube and more — on phones, computers and iPads.

Pregame: Fox begins at 2 p.m., ESPN at 9 a.m., NFL Network at 8 a.m.

Obama: Bill O’Reilly interviews the President at approx. 3:30 pm.

Glee: Special episode of Fox show airs after the game, approx. 10:30 p.m.