Creepy Crossdresser: Dr. Forrester maintains his mustache while dressing as female tennis player Billie Jean King.
Executive Meddling: In-universe example. The ratings of Mystery Science Theater 3000 are dropping, so Dr. Forrester keeps trying to change the format, by him and TV's Frank pretending to be Tug McGraw and Rollie Fingers or Bobby Riggs and Billie Jean King, and by turning Mike and the bots into the cast of Renegade.
Those aware of the LaRosa incident will find the "You're fired!" and "You have no humility!" riffs even funnier. invoked
Those with knowledge of the falling out between him and Frank Sinatra will get a few more chuckles, too.
Hiroshima as a Unit of Measure: Tom Servo's Shame-ometer measured the embarrassment of talented and/or well-known actors appearing in a bad movie in Lawfords, after Peter Lawford's uninspired turn in Angels Revenge. Forrester and TV's Frank practically break the machine dressing as Billie Jean King and Bobby Riggs.
Laser-Guided Amnesia: Subverted despite Crow's insistence to Mike: "I can't believe it—I, Crow T. Robot, have amnesia. I can't remember you, I can't remember Cambot...." Eventually he realizes that what he actually had was Ambrosia. (He then begins singing, "Make a wish, baby!" prompting the others to hit him over the head just to make him stop.)
Male Gaze: Early in the movie, we get a shot straight up a ladder as a woman is climbing it, and Crow quips "Hey, you're giving away the plot!"
Money, Dear Boy: Mike and the Bots theorize that Jack Palance and Peter Lawford had to have been paid entirely in Scotch, and lament that Jim Backus wouldn't have had to be in the movie, had he gotten residuals from Gilligan's Island.
This was also at the lowest point in Arthur Godfrey's career, who was at this point desperate for work.
Mike:(as Godfrey) You're all fired!
Though Jim Backus didn't have to worry about that. After all, according to Crow, this was his first film after he died.
With Lyrics: To the action music, as Trish sprints to Peter Lawford's hilltop mansion: "Running, and running, and running, and really really running, and running, and running, and running, yes, she's running...."