thank you, sorry for my slow response to your response . I have itunes in the cloud, and I was hoping I would be able to access all of my purchased items via my apple tv in a similar way to the way I access them via my ipad and macbook. It seems I can access some of my content but not all, it's very strange there is no section that comes up as my 'library' but as I browse through the TV programmes where something I have also purchased appears it has the cloud symbol and we can play it using airplay. Anything pointers gratefully received.
With iTunes in the cloud you should get all content on all devices (although there are a few ineligable on mine).
You should still have your library available if you have itunes open on your mac, check under computers on ATV. The cloud stuff is for when your mac is off or not runnibg itunes, you should be able to stream your content direct on ATV.