Episode 21

Happy Birthday "Doctor Who"! "Blue Peter" salutes television's most popular sci-fi series with a monstrous flashback to the days of the Cybermen, the Terileptils, the Sea Devils, and - most dreaded of all - the Daleks! Discover which of the five Doctors will be arriving in the "Blue Peter" studio, not transported by the Tardis, but in the special "Doctor Who" Sunshine minibus that will be presented to the children of the Gurney School.