Five Harvard graduate students were among 60 Boston-area university students filmed yesterday as part of a television special on media portrayal of the superpowers that aired live before an estimated 140 million Soviet viewers.

The show, which also featured students at Russian universities, likely will be broadcast in this country next fall, its American producers said.

ABC News anchorman Peter Jennings and Soviet television commentator Vladimir Pozner moderated a discussion between the students and panels of journalists from each country.

The program was part of the irregularly aired Spacebridge series, which is produced by the New York based Internews Company. One past show focused on the two countries' reliance on nuclear power following the Chernobyl disaster and the shutdown of the reactor at Three Mile Island.

"Much of the discussion was about American and Soviet stereotypes in the respective countries," participant and Harvard graduate student Anne Bohr said of yesterday's show.

Both Soviets and Americans erupted in laughter when a cartoon figure presenting Soviet conceptions of Americans was shown. Bohr said. One of the caricatures depicted a scantily dressed woman riding horseback on a dollar bill, she said.

The Boston-area students were filmed at television station WGBH. Their Soviet counterparts, were filmed in Tiblisi, the capital of the Soviet Union's Georgian Republic, Bohr said.