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We temporarily interrupt this program to bring you an excerpt from another TV show:

Bambera:	"Well done, Zbigniev! Two complete strangers walk up with a couple of antiquated pass cards, and you let them in! Why?"
Zbigniev:	"Sir?"
Bambera:	"You know something. What is it?"
Zbigniev:	"Off the record, sir?"
Bambera:	"Off the record."
Zbigniev:	"When I served under Lethbridge-Stewart, we had a scientific adviser called the Doctor."
Bambera:	"The man outside?"
Zbigniev:	"No, sir, but..."
Bambera:	"But?"
Zbigniev:	"He changed his appearance. Several times."
Bambera:	"A disguise!"
Zbigniev:	"No, sir. The word was, he changed his whole physical appearance."
Bambera:	"His whole appearance..."
Zbigniev:	"And his personality."
Bambera:	"How could he be the same man if his appearance and personality had changed?"
Zbigniev:	"I don't know, sir."
Bambera:	"What do you know, Zbigniev?"
Zbigniev:	"Just that when this Doctor turns up..."
Bambera:	"Yes?"
Zbigniev:	"All hell breaks loose!"

- Doctor Who, "Battlefield"