A DIY SOS star has claimed the show "wouldn't have worked" without Nick Knowles.
The presenter of the popular show was embroiled in controversy last year when he broke BBC rules after featuring as a builder in a Shreddies advert.
The 59-year-old's appearance violated the broadcasting corporation's editorial guidelines that stipulate actors and artists are banned from appearing in promotional work "in a way which mimics or replicates their on-air roles for the BBC."
