A producer, writer and director who has been associated with some of television's more substantive series, Bruce Paltrow began his career as a writer for Screen Gems in the early 1970s and made his mark in the medium guiding such projects as "The White Shadow" (CBS, 1978-81), and "St. Elsewhere" (NBC, 1982-88). His career, though, began in the theater in the late 1960s. Shifting gears. Paltrow's first effort of note as writer-producer was the TV-movie "Shirts/Skins" (ABC, 1973), which told the story of six businessmen who turn their weekly basketball game bet into a zany hide-and-go-seek