Actress Didi Conn plays a high school teeny-bop character in this episode which would prove to be a warm-up to a similar role of Frenchie, several years later, in the blockbuster film, Grease (1978)
Forrest Tucker never appeared in The Loretta Young Show, despite what howard cunningham read in that weeks tv guide. He also incorrectly called it The Loretta Young Theater.
Despite what Potsie says...There are other ways to catch "mono" without kissing a person with it, i.e. sharing a utensil of an infected person or drinking from the same glass