Other mistake: At the start of the line dancing scene where Ray Von is deejaying, if you have the subtitles on, it says the song is Hillbilly Rock, Hillbilly Roll by the Woolpackers. It's actually 5,6,7,8 by Steps. (I'm quite embarrassed I know that).
Phoenix Nights (2001)
1 other mistake in Season 1 Episode 2 - chronological order
Starring: Peter Kay, Dave Spikey, Justin Moorhouse, Paddy McGuinness
Genres: Comedy
Deliberate mistake: In the scene with Brian and Beverly going up the stairs, Brian is in the chairlift, and you can see in front of the wig that Peter Kay wears where the red patch is where he has shaved his real hair.
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.