The Qvc one is the best! I love the fact the presenter goes onto say the floor is slippery - Talk about admiting liability. The other funny thing is the women on the phone going on about how great it is and then "but thats never happened with mine" line, classic, Like you would go on national telly and promote a ladder that you slipped off. I also noticed they kept on selling it while checking if "Chris" needed an ambulance!