Megamaths is a BBC educational television series for primary schools that was originally aired on BBC Two from 16 September 1996 to 4 February 2002. For its first four series, it was set in a castle on top of Table Mountain, populated by the four card suits (Kings, Queens and Jacks/Jackies, and a Joker who looked after children that visited the castle and took part in mathematical challenges). There were two gargoyles at the portcullis of the castle who spoke mostly in rhyme, and an animated dragon called Brimstone who lived in the castle cellar (with his pet kitten, Digit). Each episode featured a song explaining the episode's mathematical content.