Late TV listings

This Week With George Stephanopoulos. Topics: Supreme Court decisions, the unity effort of Senators Barack Obama and Hillary Clinton; the raft of new '08 polls this week; Obama's shift to the center politically; Ralph Nader's presidential campaign. Guests: Representative Rahm Emanuel, Democrat of Illinois, Governor Tim Pawlenty, Republican of Minnesota; and Nader. 9 a.m. (5)

NECN HealthWeek. Topics: Diabetes in United States grows to staggering numbers; top 10 list to ensure a healthy vacation; latest treatments in headaches, including migraine; preventing Lyme disease; preparing a healthy summer picnic and snacks. Guests: Dr. Stephanie Moore, cardiologist, Mass. General Hospital; Dr. Stephen Silberstein, past president, American Headache Society; Dr. Ben Kruskal, director of infection control and travel medicine, Harvard Vanguard Medical Associates; Lyn Schwartz, registered dietitian. 10:30 a.m. (NECN)

Face the Nation With Bob Schieffer. Topics: Campaign 2008, North Korea. Guests: Senator Joe Lieberman, independent of Connecticut, McCain supporter; retired General Wesley Clark, Obama supporter; David Sanger, chief Washington correspondent, New York Times. 10:30 a.m. (4)

Late Edition With Wolf Blitzer. Topics: war in Iraq: troop timetable; Obama vs. McCain; Senator Clinton's role in the campaign; oil and the economy; energy crisis. Guests: Ryan Crocker, US ambassador to Iraq; Senator Mitch McConnell, Republican of Kentucky; minority leader; Governor Jon Corzine, Democrat of New Jersey, Obama supporter; Governor Bobby Jindal, Republican of Louisiana, McCain supporter; Terry McAuliffe, Clinton campaign chairman. 11 a.m. (CNN)

This Week in Business. Topics: prospects for summer tourism in a shaky economy; managed competition in the Massachusetts auto insurance industry; major changes in the newspaper and airline industries; Governor Patrick's new education plan, the Readiness Project. 12:30 p.m. (NECN)

Meet the Press. Moderator: Tom Brokaw. Topic: Obama vs. McCain. Guests: Governors Arnold Schwarzenegger, Republican of California, Dave Freudenthal, Democrat of Wyoming, and Bill Ritter, Democrat of Colorado. 10:30 a.m. (7)

Fox News Sunday with Chris Wallace. Topic: presidential campaign. Guests: Governor Ed Rendell, Democrat of Pennsylvania; former representative Rob Portman, Republican of Ohio; Bob Barr, Libertarian presidential candidate. 10 a.m. (25)