Pat Finley, who played Twinks in this episode, also played Sparkie earlier this season in "Divorce Isn't Everything".
Rhoda: When you're single in college you don't care who gets married. Now, I can't stand to see a girl walk down the aisle in a movie!
Lou: Word to the wise, Mary. The best kind of reunion is one where you don't know anyone.
This episode was filmed on January 15, 1971.