William Zabka (Cobra Kai) Appearance on Gimme a Break (1984) || Sam's First Love (S04E05) 

William Zabka (of Cobra Kai fame) makes a guest appearance on the popular 1980s sitcom "Gimme a Break," starring Nell Carter, in the episode entitled "Sam's First Love" (Season 4, Episode 5) in 1984.
If you'd like to watch this episode in its entirety, it can presently be found on RU-vid as of the time of this video's posting.
Enjoy.