I've been watching the old GOOD TIMES reruns and couldn't help but notice that John Amos, who plays the father, is apparantly quite gifted in ways besides acting.
In fact, there was an episode wherein he obviously had wood beneath his tight courds.
I happened to run into that episode wherein John Amos on GOOD TIMES is obviously partially aroused. The episode is called "The Investigation" from season 3. Though the stills don't do his dick justice, in live action it looks hefty.