Continuity mistake: When Mr. Bean is sleeping on his bed, you can see his teddy bear's head. In the next shot after the nightmare, the teddy bear's head is gone.
Revealing mistake: When Bean silences the guest in room 427 after they were playing loud music, he accidently locks himself out. Later when Bean crawls under a carpet past his room to hide from a kissing couple, room 427 has changed into a fire exit (you can see the room number has been replaced by a fire exit sign).
Visible crew/equipment: When Mr. Bean opens the door to go to lunch at the hotel, a light panel from the filming crew briefly reflects in the window of the door as it's moving. (00:15:18)
Revealing mistake: When Mr. Bean tries to delay his hotel neighbour in the elevator, the first time he does it, it's clear that he doesn't press the button itself, but the area next to it. (00:03:12)
Answer: Don't think it was an actual programme; more likely just sounds they recorded themselves.