A selection of guests scheduled on today's talk shows:
"The Oprah Winfrey Show" (9 a.m., Channel 7): Former Olympic track star Marion Jones.
"The Bonnie Hunt Show" (2 p.m., Channel 5): Actress Dana Delany.
"The Ellen DeGeneres Show" (3 p.m., Channel 5): Actress Jennifer Love Hewitt; actress Ashley Tisdale; singer Kellie Pickler.
"Larry King Live" (8 p.m., CNN): Presidential nominee John McCain.
"The Daily Show With Jon Stewart" (10 p.m., Comedy Central): Presidential nominee Barack Obama.
"Late Show With David Letterman" (10:35 p.m., Channel 2): Actor Alec Baldwin; comedian Paul Mooney; music group Ryan Adams and the Cardinals.
"The Tonight Show With Jay Leno" (10:35 p.m., Channel 5): Comedian Sarah Silverman; music group the Kooks.
"Late Late Show With Craig Ferguson" (11:35 p.m., Channel 2): Author Ben Stein; actress Parminder Nagra; music group the New York Dolls.
"Late Night With Conan O'Brien" (11:35 p.m., Channel 5): Actor Tracy Morgan; music group the Last Shadow Puppets.
"Jimmy Kimmel Live" (12:05 a.m., Channel 7): Actor Seth Rogen; actor Corbin Bleu; music group the Whigs.