Streets Doctor Who advertisement (TV story)

A  was produced in 1981 to advertise the Streets Doctor Who Ice Cream. The advertisement was first released in late November 1981 in Australia. The promotional campaign had an extremely short run, due to Peter Davison already having premiered as the Fifth Doctor by the time the advertisement aired.

The segment is of great note for being the first Doctor Who animation ever created.

Synopsis
to be added

Plot
The Doctor and K9 enter the TARDIS, and travel to an ice cavern, where they find the first Doctor Who Ice Cream. Suddenly, a doppelganger of the Doctor arrives, who is soon revealed to be Necros, a shape-shifter in disguise. Necros intends to steal the Ice Cream but is defeated by a massive laser-beam. The Doctor says it's a pity he couldn't stay, and takes some of the ice cream for himself. K9 asks the Doctor "Who invented them?" causing the Doctor to respond affirmingly "Who else K9?"

Characters

 * Fourth Doctor
 * K9
 * Necros

Story notes
to be added

Continuity
to be added