The Time Monster - Episode 2

Good old reliable Sergeant Benton.  I like how he sees through the Master's ruse and doesn't believe it's the Brigadier calling him.  And the way he makes the Master think he's left, but doubles back and sneaks back into the lab, very clever, Sergeant.  The Doctor's hair is markedly different between the filmed and the taped footage.  Curly on location, much straighter style in studio.  Not as much leg from Jo this episode, sadly.  And the episode ends pretty much the way the last one did, with the Master working the TOMTIT machine and calling Kronos to him.