Due to the popularity of the live version of Fraggle Rock, NBC aired this spin-off program on Saturday mornings for one season in 1987 (13 episodes). The animated series followed the same formula as the HBO original live-action series, including the same theme song. Many episodes consisted of two 15-minute stories; however, a few presented a single full 30-minute plot. The animated version carried on the tradition of original songs, with at least one tune per episode. In its original run, the animated episodes were book-ended by footage of the original puppet version of Uncle Traveling Matt, introducing the show from Doc’s workshop. The most noticeable difference is that unlike the live-action version, the animated version of Doc is shown from the neck down, much like Nanny was on Muppet Babies.