How the Grinch Stole Christmas! (TV special) Seuss cartoon, "Horton Hears a Who"). Both story collections contain selected dialogue and music numbers. The "isolated music tracks" in this edition are taken directly from the television soundtrack and are not the re-recorded tracks from earlier versions. The dialogues are the originals, being voiced by Boris Karloff for "Grinch" and Hans Conried for "Horton." Because Thurl Ravenscroft was not credited in the closing credits of the 1966 television special as singing the song "You're a Mean One, Mr. Grinch", it is sometimes attributed to Boris Karloff. After becoming aware of this oversight, Seuss himself called Ravenscroft and apologized profusely
How the Ghosts Stole Christmas on Sound" called the episode "one of the best Christmas episodes of any series." The review called “How the Ghosts Stole Christmas,” "an extremely creative, arguably bitter Holiday treat, perfect for [Christmas] with its blend of horror, comedy and hints of romance." "Static Mass" writer Patrick Samuel awarded the episode five stars and said, "As [Mulder and Scully] gleefully unwrap their presents at the end, this episode is something that really makes my own Christmases feel that little bit more complete." "Den of Geek" writer Juliette Harrisson, in a review of "Monday," said, "Season six included some more excellent episodes