Consumers spend "quality time" with their TVs and radios, taking them for exercise in the park and a boat ride on a lake, in a campaign for northern California Public Broadcasting Service station KQED. In one spot, a man picks up after his TV as he pulls it along on a leash. In another, he reads poetry to it. The $3 million effort, tagged "Spend some quality time," will run on cable as well as on KQED's TV and radio stations. At new KQED agency Leagas Delaney, San Francisco, copywriters were Matt Elhardt and Steve Morris, and the art director was Nick Spahr.