Yes, Minister, Series One (1986)

[Hacker asks Humphrey about the sudden financial crisis.]

Hacker:
Why the sudden crisis? The Treasury must've seen it coming.

Sir Humphrey:
Prime Minister, I'm not the Permanent Secretary to the Treasury. You must ask Sir Frank.

Hacker:
What would Sir Frank say?

Sir Humphrey:
It is not for a humble mortal such as I to speculate on the complex and elevated deliberations of the mighty. But in general, I think Sir Frank believes that if the Treasury knows something has to be done, the Cabinet shouldn't have too much time to think about it.

Hacker:
But that's an outrageous view!

Sir Humphrey:
Yes, indeed. It's known as Treasury policy.

Hacker:
Suppose the Cabinet has questions?

Sir Humphrey:
Well I think Sir Frank's view is that on the rare occasions when the Treasury understands the questions, the Cabinet doesn't understand the answers.