In "A Charlie Brown Thanksgiving", Peppermint Patty invites herself and her friends over to Charlie Brown's for Thanksgiving, and with Linus, Snoopy, and Woodstock, he attempts to throw together a Thanksgiving dinner. The t.v. special originally aired on November 20th., 1973.
10 Things You Never Knew About 'A Charlie Brown Thanksgiving - 4. Despite TV executive producer Lee Mendelson's protests, Schulz insisted that Woodstock joined Snoopy in carving and eating a turkey. To this day, viewers still complain about this act of bird cannibalism.