Fleeting tribute was paid on the 2002 Emmy broadcast to mark TV's 75th anniversary. Introduced by host Conan O'Brien as "the first woman ever seen on television," Pem Farnsworth stood in the audience for applause on her husband's behalf.

It was a skimpy challenge to the stubborn misconception that the Radio Corporation of America was behind TV's creation. This is a version of history RCA was already promulgating as its president, David Sarnoff, was plotting to crush the lonely rival who stood in his way.

Ultimately, Farnsworth would go head to head with RCA's chief television engineer, Vladimir Zworykin, and a vast company whose boss had no intention of losing either a financial windfall or eternal bragging rights. With that in mind, Sarnoff waged a war not just of engineering one-upmanship but also dirty tricks, propaganda and endless litigation.

In 1935 the courts ruled that Farnsworth, not Zworykin, was the inventor of electronic television.

But that didn't stop Sarnoff, who courted the public by erecting a wildly popular RCA Television Pavilion at the 1939 New York World's Fair and, after announcing that the RCA-owned National Broadcasting Co. would expand from radio into TV, transmitted scenes from the fair to the 2,000 TV receivers throughout the city.

Thanks to Sarnoff, money woes and the lost years of World War II (which put TV broadcasting on hold), the clock ran out on Farnsworth's patents before he could profit from them.

Now, few even working in the industry that Farnsworth sparked know who he is. But one who does is Aaron Sorkin, the playwright, screenwriter and creator of "The West Wing" (as well as "Studio 60 on the Sunset Strip," a TV drama that probes the inner workings of a fictitious TV series, which premieres next month on NBC).

A decade ago, Sorkin briefly considered scripting a Farnsworth biopic. Later on, he opted to write a screenplay that instead would focus on the battle between Farnsworth and Sarnoff.

Then he decided a play would be the better form for this tale. The result, "The Farnsworth Invention," will have a workshop production at California's La Jolla Playhouse next winter, with a possible New York staging in fall 2007.

It's unlikely such a theater piece will make Philo Farnsworth a household name. But as Sorkin wrote in a recent e-mail, "The story of the struggle between Farnsworth and Sarnoff seemed like a nice way to invoke the spirit of exploration against the broad canvas of the American Century."

The struggle between them was fierce and unfair. But in his sad fashion, Farnsworth won: The force unleashed as television was his doing, however blind the world may be to what he did.

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On the Net: www.farnovision.com

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E-mail: fmoore@ap.org