Spielberg had enough clout to get a two year guarantee out of NBC, so they couldn't cancel it until that was up. Kind of a shame nobody does anthology shows anymore.
"Hell Toupee" and "Mummy Daddy" were two of the funniest episodes, as was "Family Dog", which was spun off into it's own short lived series in the wake of Simpsons mania. I wish Adult Swim would dig that up. AFAIK, it's not on DVD.