Here's a line from a recent episode of 'The Middleman' which could have been a Zonk:
"that 'Saved By The Bell' episode where no one would tell Jessie how bad her music really was and she had a caffeine pill freakout"
But according to the Middleblog, an official online tangent of the series, this isn't quite the exact episode from the real world. Apparently, Jessie did get addicted to caffeine pills because her music career was too hectic. But there was never any direct connection between how bad her music was which would lead to the addiction. The creative team at 'The Middleman' "took a bit of poetic license there because, hey, her music really did suck."
So since this isn't an exact copy of the 'Saved By The Bell' show from the real world, we can dismiss it as a discrepancy. It could have either been a reality TV show about the characters we know - but treating them as being as real as the characters in 'The Middleman'. Or... It is a TV show, currently in production, which chronicles the past lives of those 'Saved By The Bell' characters.
I've only seen one episode of 'Saved By The Bell' - the one that linked to 'The Odd Couple' via geography (Lichtenberg). But I know this... it wasn't just the music......