Trivia: Frank dresses up as Frankenstein in this episode for an in-joke alluding to the role he played in 1974's Young Frankenstein.
Dick's Big Giant Headache (1) - S4-E23
Trivia: When the Solomons meet the Big Giant Head at the airport and ask how his flight was, he says that it was horrible because when he looked out the airplane window, he saw something on the wing of the plane. Dick responds that the same thing happened to him. William Shatner appeared in the 1960's Twilight Zone episode "Nightmare at 20,000 Feet" in which a gremlin tried to destroy the wing of a plane. John Lithgow appeared in "Twilight Zone: The Movie" playing the same character in the same situation.
Helga's Makeover/The Old Building - S1-E4
Trivia: Helga walks by the "Law Office of Garcia, James A."; Tricia Garcia is the storyboard artist for this episode.
Trivia: Steve Cardenas, who plays Rocky, did not make a personal appearance in this episode - only in morphed form.
Trivia: For some reason there is a picture of Batman's eye on Miss Parker's desk. It is between the picture of her and her father and a candy bowl. It looks like the Val Kilmer Batman, but I'm not sure. (00:00:25)
Trivia: When Kyle is knocked into the airfield by Siniestro, he crashes into a Sabre jet. As he recovers, we read the pilot's name as Col. Hal Jordan. This is the name of the second, Silver Age Green Lantern.
Trivia: After modeling in underwear in an issue of Maxim magazine to promote "Drive Me Crazy", Archie Comics threatened to sue Melissa Joan Hart for breach of contract and to fire her from the show, as her contract stated she could never portray Sabrina naked, and the name "Sabrina" was printed on the cover of the magazine. Hart was able to make the situation go away simply by writing an apology letter.
Steve Gets the Sniffles - S2-E1
Trivia: During a mailtime segment, there's a rare Blue's Clues poster visible.
The Return of the Beast: Part 1 - S1-E1
Trivia: When we see the flashback of the accident that caused Bruce Banner to become the Hulk, at first we see the Hulk colored gray and then slowly turn green. This is a reference to the comics, in which the Hulk was gray in his original appearance.
Trivia: As Frank is running up the stairs in the FBI, just before he meets Peter you can see "Mulder and Scully" walking down the stair case - this is in fact David Duchovny and Gillian Anderson's stand-ins, but they do look a lot like them.
Trivia: This episode has the infamous scenes in which Mary wants Matt's help with kissing. Supposedly, the original script involved the siblings actually kissing for practice, but Jessica Biel (playing Mary) and Barry Watson (Matt) refused to do it.
Trivia: The music used for the Octopus Dare computer game is an 8-bit rendition of the show's main theme tune.