GREENSBORO (AP) _ Comedian Bob Hope, singer Diahann Carroll, actress Cathy Lee Crosby, ''Miami Vice'' actor Don Johnson and former football star O.J. Simpson will be taking to the tube to help promote American-made textiles.

The five celebrities were hired to appear in television commercials promoting the textile and apparel industry's ''Crafted with Pride in the U.S.A.'' campaign.

The first installment of the $33 million campaign is set to begin today in major cities across the United States, industry officials said.

Robert Swift, executive director of the Crafted with Pride council, said the campaign is to sell consumers on U.S.-made products rather than to lobby for protectionist legislation against imports.

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NEW YORK (AP) - Comedian Bill Cosby took his campaign against South Africa's racial policies to his top-rated television show despite objections from NBC, Newsweek magazine says in a cover-story profile of the comedian.

Cosby threatened to walk off the set 10 minutes before the taping of a scene in the season's premier episode because network censors objected to a foot-long sign Cosby ordered for the set that contained the words ''Abolish Apartheid,'' the magazine said in its current issue.

The censors said the network could not appear to endorse a controversial position, Newsweek said.

''There may be two sides to apartheid in Archie Bunker's house. But it's impossible that the Huxtables (his TV family) would be on any side but one. That sign will stay on that door. And I've told NBC that if they want it down or if they try to edit it out, there will be no show,'' Cosby said.

The sign stayed up, Newsweek said.

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WATERFORD, Conn. (AP) - Ray Bradbury, known for his futuristic novels, defends nuclear weapons as having ''prevented a major war.''

Bradbury turned 65 last week in Waterford, where he was turning ''Fahrenheit 451'' into a musical drama at the O'Neill Theater Center's Opera Music Theater Conference.

''The atom bomb is the most Christian thing we've ever invented,'' Bradbury said in an interview in Sunday's editions of The Day of New London. ''I'm totally convinced it's prevented Russia from taking over the rest of Europe.''

Bradbury's best-known books are ''Fahrenheit 451,'' written 25 years ago, and ''The Martian Chronicles.''

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SEATTLE (AP) - Lorian Hemingway, granddaughter of novelist Ernest Hemingway, has a new writing assignment, from Penthouse magazine for a story on treasure hunter Mel Fisher.

Fisher recently found the main wreckage of Nuestra Senora de Atocha, a Spanish galleon that sank off Florida 362 years ago.

On the day of Fisher's discovery, Ms. Hemingway - whose first name comes from that of an Italian lake - was in Key West, arm-wrestling in a tournament at Sloppy Joe's bar.

''Two days after the galleon's hull was found, Hurricane Bob hit the Florida coast,'' she said. ''The town went crazy. You could sense the superstition. A lot of people felt God was angry that the treasure had been disturbed.''

There was a time when Ms. Hemmingway, cousin of actresses Margaux and Mariel Hemingway, did not even use the last name of her famous grandfather. But now, she said, ''I'm not wary any more. Besides, it's a pretty name.''