Step Into the 80's! (TV story)

Prime Computer advertisement was a video to accompany the marketing campaign to sell prime computers. It featured Tom Baker as the Fourth Doctor and Lalla Ward as Romana, and was licensed by the BBC. There were 4 parts.

Cast

 * Fourth Doctor - Tom Baker
 * Romana - Lalla Ward

Home video releases
They were released commercially on DVD with Destiny of the Daleks.