Red Forman makes a comment that "There's only one girl in the world with Bob Pinciotti as her dad." referring to Donna. Actually, in the early seasons of That '70s Show, Donna had a little sister named Tina. For unknown reasons, she stopped appearing and was never referenced again.
Leia claims she is turning 15; as this episode happens during summer '95, and Eric returns to Point Place on December 31st, 1979, it means that either Donna got pregnant immediately and had a phenomenally short pregnancy, or that she was already pregnant for up to three months before Eric arrived home from Africa.
Kitty says that Bob was "driving her crazy," so she fed him cold medicine in multiple servings, but it was "like ...drugging a rhino." Don Stark provided the voice of Rhino on Spider-Man: The Animated Series.
Bob (Don Stark) sings ''I'll make love to you'' on the Karaoke-Machine. Originally this song was released in 1971. ( Written by Kenneth Edmonds ). The cover-version by Boyz II Men became a big hit in the early nineties.
In one scene, the characters spoof the early '90s "Beverly Hills 90210" intro, they even do some poses like the original (e.g. a male character giving punches in the air, a female character biting the earpiece of her glasses).