Originally released by BBC Enterprises in 1989, this is from the final year of issue (1994). The tape was deleted on 2nd November 1994. This was the last Dr Who story to be released (on video) as a omnibus compilation (it also never came out again in it's episodic form). You had to wait 18 years (and a different format!) to see in it's original form. This story was also the first to have: a new title sequence, Sarah Jane Smith (played by the Late & Great Elisabeth Sladen) and a Sontaran. This was also the start of Jon Pertwee's final season as the Doctor.