This Week hosts a town hall discussion in Tucson titled, "After the Tragedy: An American Conversation Continued."
Fox News Sunday hosts New Jersey Gov. Chris Christie (R) and former Minnesota Gov. Tim Pawlenty (R).
State of the Union hosts Reps. Tim Murphy (R-Pa.) and Grace Napolitano (D-Calif.), psychologist Fred Frese, author Pete Earley, Treatment Advocacy Center's Dr. E. Fuller Torrey and the University of Maryland's Dr. Lisa Dixon.
Other Weekend ShowsPolitical Capital features Sen. Richard Lugar (R-Ind.) (Bloomberg, Friday, 7 p.m.).
Washington Week features NBC's Pete Williams, the Washington Post's Dan Balz, and the Wall Street Journal's Janet Hook (PBS, Friday, 8 p.m.).
Real Time features Consumer Financial Protection Bureau/Obama adviser Elizabeth Warren, GOP strategist Mike Murphy, Democratic strategist James Carville, Reuter's Chrystia Freeland and actor Martin Short (HBO, Friday, 10 p.m.).
Situation Room features Giffords' intern Daniel Hernandez, Dr. Alan Lipman, Bill Badger, lawyer Alan Dershowitz, and Cpt. Sully Sullenberger (CNN, Saturday, 6:30 p.m.).
Communicators features Consumer Electronics Association Pres. Gary Shapiro and Telecommunications Reports Paul Kirby (C-SPAN, Saturday, 6:30 p.m.).
Huckabee hosts TBD (FNC, Saturday, 8 p.m.).
Chris Matthews Show features MSNBC's Norah O'Donnell, Atlantic's Andrew Sullivan, CNN's Gloria Borger and National Review's Reihan Salam (NBC, Sunday, check local listings).
Wall Street Journal Report features Lady GaGa, Ford CEO Alan Mulally, Microsoft CEO Steve Ballmer and CNET's Brian Cooley (Sunday, 10 a.m./6 p.m.).
Newsmakers hosts Health and Human Services Sec. Kathleen Sebelius. Guest reporters are the Washington Post's Amy Goldstein and Bloomberg's Jeffrey Young (C-SPAN, Sunday, 10 a.m./6 p.m.).
Reliable Sources features FrumForum's David Frum, the Washington Post's Dana Milbank, Atlantic's James Fallows and WBBM's Bill Kurtis (CNN, Sunday, 10 a.m.).
Fareed Zakaria GPS features former White House National Economic Council Director Larry Summers, author Mark Ames, the Washington Post's Richard Cohen, author Bernard-Henri Lévy and the Wall Street Journal's James Taranto (CNN, Sunday, 1 p.m.).
Q & A features students from The Washington Center discussing politics and government as viewed through their experience in visiting Washington, D.C. (C-SPAN, Sunday, 8 p.m.).
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