What about ghosts? There was
Topper (1953-1955) and
The Ghost and Mrs. Muir (1968-1970).
And angels:
The Smothers Brothers Show (not the comedy-variety hour, but their earlier black-and-white sitcom that ran for one season in 1965-66),
Highway to Heaven (1984-1989),
Touched By An Angel (1994-2003), and the aborted Marx Brothers sitcom
Deputy Seraph (1959).
And there was
I Dream of Jeannie.