Paul's opening number about trick-or-treaters is adapted from the song "Kids", which Paul had sung in the 1963 movie Broadway musical adaptation movie "Bye Bye Birdie."
This TV special marked the primetime network television debut of the band KISS.
After Betty White (as Miss Halloween) departs, Paul Lynde cracks: "She has a striking resemblance to Betty White. But then so many witches do." This special was made when White's best-known role was the bitchy Sue Ann Nivens on The Mary Tyler Moore Show (1970)
When Paul Lynde is taken to Margaret Hamilton's "sister's" house, a real life photo of "Bunratty Castle" in County Clare, Ireland was used. The photo of the castle is shown with ominous music and renamed 'Gloomsbury Manor' for comedic purposes.