ThunderCats (comics) are held prisoner in Castle Plundarr while Wilykit and Wilykat are the personal servants of Mumm-Ra. This storyline was distinctly more mature than many episodes of the series, with much harsher language such as "bastard" used by Mumm-Ra. Cheetara is depicted as holding a grudge against Lion-O for "abandoning" his friends and leaving her to be abused by the Mutants and WilyKat's corruption in the earlier mini-series takes greater form. Realizing he has betrayed his friends, the older cub flees when the mini-series concludes. Lion-O and the ThunderCats emerge triumphant over Mumm-Ra once again. By the third mini-series, "The Dogs
Mr. O broadcast Thursdays at 4:30 p.m. (Eastern) from 5 April to 21 June 1956. It was then broadcast for a full season on Thursdays at 5:15 p.m. from 4 October 1956 to 4 July 1957. Mr. O Mr. O was a Canadian children's music television series which aired on CBC Television from 1956 to 1957. This series on classical music was hosted by David Ouchterlony. It was geared towards children aged between five and eight, compared to Ouchterlony's previous series "Let's Make Music" which was geared towards older children. Episodes featured puppet characters operated by John and Linda Keogh such as