Revealing mistake: If you look at Les out of Les Alano's' drumming, several time throughout the whole show, you can see he is miming and his stick is not even close to the actual drum.
Phoenix Nights (2001)
1 revealing mistake
Starring: Peter Kay, Dave Spikey, Justin Moorhouse, Paddy McGuinness
Genres: Comedy
Factual error: When Brian is talking to Kenny beside the inflatable, his phone goes off. He has a Motorola phone but it was a Nokia message alert sound.
Brian Potter: Don't talk to me about upper body strength, Lesley! My forearms are massive.
Les: An' we all know why that is don't we? Too much "Trumpet Polishin'"
Trivia: If you watch throughout the entire series when Brian Potter calls people on their mobile phone. The display name is IRONSIDE. This is actually a reference to an American detective who was in a wheelchair, played by Raymond Burr.
More questions & answers from Phoenix Nights
Answer: Yes it is PK - the characters he plays are Brian, Max, Keith Lard and indeed the voice of the radio. you can hear him on the radio a few times throughout the series.