It could only get more Whoey if the Doctor himself arrived on set arm in arm with the Master, and they were bickering like schoolboys about, like, Time Lord tech… or… um…
"It’s a sonic screwdriver," David explains
"Sonic?" scoffs John, a grin shining through his attempt at mock disgust. "Who’d have sonic? Laser, mate, that’s what you want.”
"The Doctor wouldn’t use laser."
"This is brilliant, then - the Master will win!"
"He won’t win, John. He never wins."
That actually happened. I swear. And it went on for some time