The Sunday talk show big news is all about Mitt Romney appearing on a Sunday show for the first time in a year when he’s on Fox News Sunday.

Think tankers on the Sunday talk shows (full line-up below):

NBC’s Meet the Press: Rep. John Boehner (R-OH), Speaker of the House; Rep. Michele Bachmann (R-MN); Gov. Nikki Haley (R-SC); E.J. Dionne, Brookings Institution and Washington Post columnist; Mike Murphy, Republican strategist

CNN’s State of the Union with Candy Crowley:Jon Huntsman, Republican presidential candidate; Paul Bremer, former presidential envoy to Iraq; Gen. James Cartwright (Ret.), Former Vice-Chairman of Joint Chiefs of Staff; Robin Wright, Woodrow Wilson Center

And the full line-up:

CBS’ Face the Nation: Newt Gingrich

ABC’s This Week:The Great American Debate” series debuts with Rep. Paul Ryan, (R-WI); George Will, ABC News and The Washington Post; Rep. Barney Frank, (D-MA); Robert Reich, University of California-Berkeley

Fox News Sunday: Mitt Romney, Republican presidential candidate

CNN’s GPS with Fareed Zakaria:Afghan president Haid Karzai; David Remnick, The New Yorker; Peggy Noonan, Wall Street Journal; Kurt Anderson, Time; Gillian Tett, Financial Times

CNN’s Reliable Sources with Howard Kurtz: Julie Mason, Sirius XM Radio; Dana Milbank, The Washington Post; Ramesh Ponnuru, National Review; David Zurawik, Baltimore Sun; Marisa Guthrie, Hollywood Reporter, Dave Zirin, The Nation; Gregg Doyel, CBS Sportsline; Andrew kaczynski; Richard Stengel, Time.

Bloomberg’s Political Capital with Al Hunt: Rep. Pete Sessions (R-TX)

NBC’s The Chris Matthews Show: Katty Kay, BBC; Chuck Todd, NBC; Rick Stengel, Times; Kathleen Parker, Washington Post

Washington Watch with Roland Martin: Benjamin Jealous, NAACP; Melody Barnes, outgoing White House director of the Domestic Policy Council; Randi Weingarten, American Federation of Teachers