Although Christopher Timothy may be more familiar to viewers playing Yorkshire vet James Herriot , tonight, in the guise of a very persistent travelling salesman, he seems to have made Noel Edmonds a prisoner in his own "home". Australian soap-opera hearthrobs Kristian Schmid (Todd Landers in Neighbours) and Mat Stevenson (Adam from Home and Away) face each other in the ultimate test of popularity - the gunge tank. Former EastEnders actress, now a successful pop singer, Sophie Lawrence proves she has a great sense of humour when she earns her Gotcha Oscar making an advertisement she would rather forget. And there's the weekly chance for viewers to call in to Grab a Grand.