Good Times (1974-1979)

When this show started, it was supposed to be a serious drama disguised as sitcom. Then it became a wacky, nothing-special sitcom because watching people teetering on the edge of starvation is exhausting but watching a funny twenty-minute show at the end of a hard day is nice.

Norman Lear sitcoms are sometimes emotionally poignant, and they often try to prove a point in a preaching-to-the-choir way. But they're almost never entertaining.