Tommy Zoom

During the 2009 Sontaran invasion of Earth, the Tenth Doctor momentarily switched over to a cartoon on a UNIT computer screen while waiting for the Sontarans led by General Staal to stop chanting, much to the concern of Colonel Alan Mace. The episode in question featured a blue-skinned creature dressed as a magician with a top hat, moustache, cape holding a wand and a bunny, presenting a show for "boys and girls". Seated in the audience were a young boy and a dog who the boy spoke to. (TV: The Poison Sky)

Behind the scenes
Although unnamed in The Poison Sky, the television series was called Tommy Zoom in the real world. The show was airing on CBeebies at the time of The Poison Sky's production.