Third Doctor regenerates – Jon Pertwee to Tom Baker

The 8th day of June 1974 recorded Jon Pertwee’s time as the Third Doctor come to an end when, having been fatally affected by the Metebelis crystals, and he had to regenerate. Classic clip was taken from the 1974 six-part story ‘Planet of the Spiders’, starring Jon Pertwee as the Doctor, and uploaded on Youtube by the Doctor Who team.