Highlights

Personal trainers work out their issues on "Work Out," tonight at 10 on Bravo. (By Jaimie Trueblood -- Bravo)

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Tuesday, May 6, 2008; Page C06

Highlights

This afternoon, Barbara Walters discusses her 1970s affair with then-U.S. Sen. Edward Brooke on "The Oprah Winfrey Show" (Channel 7 at 4).

Tonight, the cable news channels report the primary results from Indiana and North Carolina. "Charlie Rose" (Channel 32 at 11 and Channel 26 at 11:30) also provides live coverage of the election results.

The final four -- David Archuleta, Jason Castro, David Cook and Syesha Mercado -- perform on "American Idol" (Channel 5 at 8).

Ziva's undercover assignment grows deadly when the serial killer she's been tracking grows suspicious on "NCIS" (Channel 9 at 8).

Back-to-back dancing (Channel 7 at 8 and 9): A recap "Dancing With the Stars" is first and then four pairs will remain after Samantha Harris and Tom Bergeron send home their eighth couple on tonight's results show.

Andi's ex-boyfriend, who just happens to have sold his soul to the devil, comes calling, throwing her relationship with Sam into turmoil on "Reaper" (Channel 50 at 9).

A Las Vegas casino owner facing a murder charge persuades Sebastian, in Sin City to gamble after getting disbarred in California, to defend him on "Shark" (Channel 9 at 9).

A member of the "Women's Murder Club" (Channel 7 at 10) finds her life threatened when she investigates a revenge killing on a college campus.

The detectives uncover a conspiracy in a family of wealthy coffee traders when an autopsy reveals that a pregnant woman, whose body is found in a fire-ravaged brownstone, had been raped on "Law & Order: Special Victims Unit" (Channel 4 at 10).

Tempers flare aboard the Wizard and Northwestern; Time Bandit has a dangerous electrical short; and Phil's health deteriorates aboard the Cornelia Marie on "Deadliest Catch" (Discovery Channel at 9).

Jackie Warner and longtime trainer Brian Peeler have a major falling out, and two other trainers pose for a magazine photo shoot on "Work Out" (Bravo at 10).

The second and concluding part of the "American Experience" profile of George H.W. Bush (Channels 22 and 26 at 9) closes with the final days of his presidency.

"Nova" (Channels 22 and 26 at 8), in a repeat episode, explores the origins of the estimated 220,000 to 400,000 flowering plant species on Earth.

Animal ambassador Julie Scardina and actress Christina Ricci visit, and singer-songwriter KT Tunstall performs on "The Tonight Show With Jay Leno" (Channel 4, 11:35).

Ashton Kutcher, magician Mac King and musician Steve Winwood appear on "Late Show With David Letterman" (Channel 9, 11:35).

"Jimmy Kimmel Live" (Channel 7, 12:05) talks with Robert Downey Jr. and the celebrity sent home by "Dancing With the Stars."

-- Christian Hettinger