OK, so I bought an HDMI adapter for the ipad, and a connecting cable, connected the iPad to the TV, only to be told that I couldn't play the film I'd downloaded from iTunes on my TV, as it was protected. So what on earth is the point of the adapter? How can I play films I've downloaded to my iPad on the TV? Is it possible? If not, what is the adapter for? It wasn't cheap, and is a complete mystery to me.