Big Brother 2 (8 p.m., CBS) says buh-bye to a second houseguest. Fox brings back Guinness World Records (8 p.m., Fox) for a summer run, without a doubt the grossest show in prime time. Some viewers will take that as an endorsement. Bill Pullman, Brian Dennehy and Cary Elwes star in this week's scary tales on Night Visions (9 p.m., Fox). 48 Hours (10 p.m., CBS) reinvestigates the case of a man accused of killing his kids for insurance money; the case was chronicled in the nonfiction bestseller "While Innocents Slept."

Sports

Baseball:
Yankees at Tigers (7 p.m., Fox Family)

Golf:
British Open (8 a.m., ESPN)

Talk

Rosie O'Donnell (syndicated) Donny Osmond, Darrell Hammond (rerun)
David Letterman (CBS) Jon Favreau, Holmes Brothers
Jay Leno (NBC) Catherine Zeta-Jones, Henry Rollins, Lyle Lovett
Politically Incorrect (ABC) Vitamin C, Bob Guccione Jr. (rerun)
Conan O'Brien (NBC) Tom Bergeron, Tricky

All times Eastern unless noted.