'How I Met Your Mother' co-creator Craig Thomas opened up about the inspiration for the show's first Halloween episode, "The Slutty Pumpkin." He said they were inspired by 'It’s the Great Pumpkin, Charlie Brown' and wanted to compare Josh Radnor's Ted Mosby to Peanuts' Linus.
https://people.com/himym-slutty-pumpkin-charlie-brown-great-pumpkin-117…