Question: Into the Labyrinth was only was later shown in the United States as part of a program whose featurettes focused on characters with what?
Sentence (from "H.R. Pufnstuf"): Reruns of the show aired on ABC Saturday morning from September 2, 1972, to September 8, 1973, and on Sunday mornings in some markets from September 16, 1973, to September 8, 1974.
Relevant evidence: No