sentences:  Doc, Sprocket the Dog, Gobo Fraggle, Wembley Fraggle, Boober Fraggle, Mokey Fraggle, Red Fraggle, and Uncle Traveling Matt appeared in "A Muppet Family Christmas".Doc and Sprocket rent the farmhouse of Fozzie Bear's mother while she plans to go to Malibu until Fozzie shows up with his friends.Doc and Sprocket end up adjusting to the Muppets and the characters from Sesame Street even to the part where Doc volunteers to help Kermit by looking for Miss Piggy in the blizzard.