The strip continued, but Capp’s lucrative public speaking career pretty much ended around 1971 when he was accused by numerous women (including a young Goldie Hawn) of sexual harassment and assault.
Capp retired the strip in '77, but he died in '79.
I used to watch Mike Douglas, Merv Griffin, and Dinah Shore. I think most of them were on after school (maybe some were reruns–don’t remember). There wasn’t a lot to watch back in those days.