The Mystery Science Theater 3000 presentation contains examples of:
Genius Bonus: invoked At the title, Servo starts singing, "Oh, Hercules, my darling..."note "Unchained Melody", geddit?
It's Been Done: By Steve Allen, no less; Joel invents the Steve-O-Meter which detects whether a given idea has already been thought of by Steve Allen. Turns out Steve already thought of the Steve-O-Meter too.
Love Potion: In parody of the film's Waters Of Forgetfulness, Joel and the 'bots partake of the (Bottled) Water Of Forgetfulness, the Carob Shake Of Pretentiousness, the Dairy Queen Blizzard Of Loneliness (I found a quartah!), the Fruit Stripe Gum Of Stability, and the Green Bean And French Onion Casserole Of Happiness.