In the original Doctor Who series , the Master 's TARDISes have had fully functioning chameleon circuits , having appeared as various things , including a horsebox ( Terror of the Autons ) , a spaceship ( Colony in Space ) , a fir tree ( Logopolis ) , a computer bank ( The Time Monster ) , a grandfather clock ( The Deadly Assassin and The Keeper of Traken ) , a fluted architectural column ( Logopolis , Castrovalva , Time-Flight ) , an iron maiden ( The King 's Demons ) , a fireplace ( Castrovalva ) , a British Airways jet ( Time-Flight ) , a cottage ( The Ultimate Foe ) , and a triangular column ( Planet of Fire ) .
In the original Doctor Who series , the Master 's TARDISes have fully functioning chameleon circuits and have appeared as many things .