updated 08/22/1988 AT 01:00 AM EDT

originally published 08/22/1988 AT 01:00 AM EDT

CHEST PAINS: "The thing that's bad about breasts," says actress Susan Sarandon, referring to the attitudes of Hollywood, "is that you have to choose between having a mind and having breasts. It'd be nice if you could have both. I resent having to have one or the other." Although she had topless scenes in Pretty Baby, Atlantic City and The Hunger, she rejects the popular notion that her breasts are overexposed. "I don't think my breasts have been so much on display; they've just been in some fairly historic movies," she says. "And in Bull Durham you don't see them at all. I think my breasts are highly overrated."

DENEY FOR YOUR THOUGHTS: In addition to hosting his new late-night talk show, Later...with Bob Costas, which starts Aug. 22, NBC sportscaster Bob Costas will be behind the mike for the World Series, the Summer Olympics and the Super Bowl in the coming months. While having millions of viewers may unnerve some broadcasters, Costas has devised a method that ensures tranquillity. "I think what you ought to do is look into that camera and try as much as possible to talk to one or two people," says Costas. "I think everyone will tell you that. It varies on who the person might be. Different images pop into your head. I became somewhat disturbed when, for an entire week, I imagined I was broadcasting to Deney Terrio of Dance Fever. But other than that, it's just kind of a generic one person."

SERVING A SENTENCE: When Debbie Reynolds' new autobiography, Debbie: My Life, reaches bookstore shelves this fall, she'll be treading in the authorial footsteps of her daughter, Carrie Fisher, whose novel, Postcards from the Edge, is now out in paperback. "I'm not as talented as Carrie," says the veteran actress and fitness-video star. "I can write about my life. She has the brilliance to create things." Reynolds says Carrie likes Mom's book but offered little literary advice while she was working on it. "Her only suggestions were that I change the title—either to Money, Dearest or Singin' in the Pain."

SNOOZE NEWS: After nearly 12 years as ABC's fearless White House correspondent, leather-lunged Sam Donaldson is giving up that beat when President Ronald Reagan leaves office (his new assignment is as yet undecided). He predicts that his successor, so far unnamed, will have to put in more time than Sam has of late—and not just to learn the ropes. "The next President, unlike Reagan, will not keep banker's hours, whether it's Dukakis or Bush," says Donaldson. "During the Carter Administration I was down there every morning by 8 a.m. You often worked 16-to 18-hour days. With Reagan it's 9:30 a.m. till around 10 a.m. The old boy takes a nap in the afternoon—you do too."

REST OF THE STORY: Mariette Hartley, who rose weekdays at 4:30 a.m. while co-hosting CBS' The Morning Program, says she hasn't lost any sleep since the program was canceled last November. She's plenty busy, with a new film, 1969, out this fall and a leading stage part in the production of Shakespeare's King John in New York's Central Park this month. Best of all, though, she's catching Z's. "I slept until 10 o'clock this morning," Hartley says happily, "and I'm finally beginning to feel as if I'm not sneaking it. Right after the show ended, I was a closet sleeper—always thinking, I shouldn't be doing this, but God, doesn't it feel good!' " And she has put sushi back on her late-night menu. "I love it, but I couldn't eat it without getting puffy eyes in the morning. I'd come in to work, and people would say, 'Sushi, huh?' Now I can eat sushi and sleep."

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