In general, it seemed like a lot of black led sitcoms from the '70s (Good Times, The Jeffersons, Sanford and Son, and Diff'rent Strokes) started to lose their touch/edge as they got closer to the '80s?
*George Jefferson softened a bit and wasn't yelling 'hon--' anymore.
*Fred Sanford and his buddies started getting into these get rich schemes.
*Michael from Good Times wasn't so "militant" and mellowed out. This started to happen once John Amos left the show.
*Arnold and Willis from Good Times started becoming preppy and lost their edge.