It's not licence payers, these are mostly on the commercial channels so the TV licence doesn't apply to them. If you look at the credits, lots of the programmes are sponsored (as as many on the ITV etc channels - they help with the costs). You can bet that DIY companies etc fall over themselves to give paint and wallpaper and furniture to be used in the makeovers - the credits at the end of the Peter André show today had a whole list of "thanks to" those sort of suppliers, it's all good PR for them.