This episode was placed with an unofficial ban from broadcast distribution due to the Giant Walrus being too frightening and haunting for too many young viewers. It was also removed from British television in 2003. It was still broadcast in the United States however, and was also released on DVD in said region (Region 1), but it hasn't been released on VHS by BBC due to the major controversy towards this episode. Source: https://pingu.fandom.com/wiki/Censorship_of_Pingu