Aertv channels are restricted to viewing from within The Republic of Ireland. Our player does this by checking you have an Irish IP address. You will see this message if you are trying to view the channel from a non-Irish IP address. You can check what country your IP address is from by visiting this site:
http://www.iplocation.net
If you are in Ireland but have an non-Irish IP address you won't be able to watch our channels and you should raise the issue with your internet provider.