Nick Knowles is facing the sack by "DIY SOS" after doing an ad for Shreddies breakfast cereal where he plays a jobbing builder.
The BBC have said it's in breach of their advertising rules and he has used his roles on the home makeover show for the commercial. He's been told to get the ad taken off the air or to quit the TV show he has hosted for 22 years.
Nick and BBC bosses are now in talks to come up with a solution.
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