For The Beatles it must have been a hard day's night, but such was Dalek-mania, the robot mutants helped Doctor Who exterminate the Fab Four in one of the first major TV ratings battles.

Although popularly known as The Daleks and referred to as such on the DVD release, story is also known as The Mutants and The Dead Planet. The Daleks make the first of many appearances in the series.

The Daleks in Colour is being broadcast on Thursday as part of Doctor Who's 60th anniversary One of the first ever Doctor Who programmes will be broadcast in colour for the first time on Thursday.