Fraggle Rock: The Animated Series (1987)

S1E1 No Fraggle is an Island

Boober becomes increasingly frustrated with the overcrowding in Fraggle Rock, prompting him and the other Fraggles to seek solitude and relocate to a remote area. However, when a Giant Slurp invades their abandoned home, the isolated Fraggles come together to fight back and reclaim their space, realizing the importance of living in community once more.