the fifteenth and last part in Planet Earth module of Search Out Science. Special edition of the children's education programme "Search Out Science" featuring Sylvester McCoy and Sophie Aldred playing their familiar "Doctor Who" characters to inform young viewers about space travel. Concept: The Doctor is hosting a gameshow. The contestants are the viewer, Ace, K-9 and Cedric from the planet Glurk. They have to answer various questions from a range of suggestions given along the way.