I have noted that on some movies and especially on TV shows that while I am scrolling through the show titles and it says “Fetching” for the metadata, the ATV will reboot and become unresponsive for about 30 seconds. It will only happen on cetian movies and quite a few TV shows. In the naming convention for the TV shows I will use the show name then 1x1 for season one episode one which works well for MiRow which I also use. If I keep scrolling through the list this does not happen but if I stop and let it try to fetch after about 4 to 5 seconds this reboot happens and it happens every time on the same movies and shows.
Yet it fetches fine on other movies.