Sheldon H. Stark, 87, who wrote for six decades for radio, television, film and stage. Educated at Dartmouth, Stark began writing for radio, churning out more than 500 scripts for adventure series including “Batman,” “Green Hornet” and “The Lone Ranger.” One of the earliest writers for television, he created scripts for the live show “Studio One” and later series such as “Hawaiian Eye,” “Ben Casey” and “Wagon Train,” the TV versions of “Batman” and “Green Hornet,” and “Quincy,” “The Man from UNCLE” and “The Virginian.” His first play, “Time of Storm,” produced off-Broadway, won a Best of Season Award in 1954. He also published a novel, “Too Many Sinners.” Stark helped form the Radio Writers Guild, which later merged with the Writers Guild of America, and held several offices in each organization. He taught screenwriting at UCLA and Santa Monica College. On Feb. 6 in Los Angeles.