Settle yourself down on the sofa for another evening with interior designer Neville Knott, who has made it his mission to slap a smile on the faces of homeowners across the country. Neville will be turning up unannounced on yet another lucky hopeful's doorstep this evening, and offering to redecorate a room in their house for absolutely nothing. All they have to do is hand over their keys, and head off for a luxury spa weekend. Where can we sign up?