This is the first time Miranda's parents (Dyana Orteli & Armando Molina) have been seen, except for some still photos of her father in the "Gordo and the Girl" episode.
The song heard playing at Fright Night is "Monster Mash," a 1962 novelty hit for Bobby "Boris" Pickett and the Crypt-Kickers. It's "dug up" by radio stations every Halloween.
According to the commentary on the "Lizzie McGuire Vol. 1 DVD Box Set," this is Ashlie Brillault's favorite episode.
This is also one of the few episodes Sam and Jo are seen kissing each other.
Character mentioned but not seen: Heather, Lizzie's cousin who she promises to get Gordo a date with when she visits.