Hi there, will try to provide as much info as possible but let me know if more is needed.
I have purchased the newest Apple TV (March 2012) recently, and have noticed that it cuts out when I'm watching films and TV shows, but never when I listen to music or the radio. My friends have also noticed they cannot play youtube videos off their iPads onto the apple TV. When it cuts out, it does not say "cannot connect to iTunes" or anything similar to that, it just returns to the home screen and then we can select the computer and TV programme and resume playing as normal. This happens every 5-10 minutes during a show/film though and does get incredibly annoying.
Originally I felt it would be a network problem. We have BT Infinity and the Home Hub 3.0, and I am aware that lots of people have issues with this. However this problem doesn't happen on any other device, nor when playing music. It is specifically when watch movies and TV shows. I have actually swapped the home hub device for a Netgear Cable Router back and forth trying to see if it ever made a difference, and the same problem is still happening therefore I do believe it to be a problem with the Apple TV.
I have checked the troubleshooting advice for the Apple TV and followed that and nothing seems to have helped (unplugging various bits, making sure i'm on the right channels etc.).
In short I have literally no idea what could have happened and what to do about this, and before I actually rang apple I wanted to know if anybody new anything about problems like this and how they can be resolved.
PS it is also worth noting that on our homeshare, we can no longer access one of our friends iTunes, despite it being visible it never loads and is invisible to the Apple TV. This also baffles us and we are not sure if it is related!!
Can;t think of any other details but let me know!