Doctor Who (1963) - 16 mistakes in series 6
The Dominators
Continuity: At many points in this story there are problems with the costume that Zoe is wearing...the zip is often jammed part or all the way open. Not only does this leave most of her back exposed, but the position of the zip tends to change position during scenes, as while off camera Zoe tries to pull the zip back up, only for it to open up again minutes later. (It is a little unkind to say it, but possibly the costume was a little bit too tight for Zoe, causing it 'self unzip'?).
Factual error: The chart of the radiation on the island is wrong. The dialogue says it has steadily decreased over the past 172 years then suddenly disappeared. But the chart says it initially dropped rapidly for a few years, then started to fall at a slower rate for about a hundred years, then changed again and dropped to zero over fifty years. However, the way radiation disperses is anything but steady. It will continually slow down in its dispersal, forming a curve on a graph.
The Mind Robber
The Invasion
The Seeds of Death
The War Games