Yes, Prime Minister - Season 1 - Eps 4: The Key
Office politics take precedence over national issues when Sir Humphrey and Bernard fall out with each other after Jim tries to restrict Sir Humphrey’s access to №10.
About Yes, Prime Minister

Title: Yes, Prime Minister
First Air Date: 1986-01-09
Last Air Date: 1988-01-28
Status: Ended
Rating: 8.36/10 (from 121 votes)
Language: EN
Seasons: 3
Total Episodes: 16
Network: BBC Two
Genres: Comedy
Production Companies: BBC
Synopsis
James Hacker MP the Government's bumbling minister for Administrative Affairs is propelled along the corridors of power to the very pinnacle of politics - No. 10. Could this have possibly have been managed by his trusted Permanent Private Secretary, the formidably political Sir Humphrey Appleby who must move to the “Top Job” in Downing Street to support him, together with his much put upon PPS Bernard Wolley. What could possibly go wrong?
Cast

Paul Eddington
Jim Hacker

Nigel Hawthorne
Sir Humphrey Appleby

Derek Fowlds
Bernard Woolley