Youtube don't work on my Apple TV

Hi,
I tried many times to access youtube with my apple TV but it doesn't work. If a try to make a search, I see the searching icon moves but I don't get any results, if I go the the most viewed the same happens: I don't get any results. The internet connection works without problems, I play internet radio stations, I see movie trailers, but it looks that youtube doesn't work on apple tv. There is someone else with the same problem? Can anyone help me? Thanks!