Whenever I use AirPlay to watch streamed content (streaming from the web (via an app or Safari), that is, not from a downloaded movie) from my iPad to my Apple TV, subtitles are never carried over. Why is this? Is there some obscure setting to enable subtitle support in AirPlay/Apple TV?
try Beamer app, it makes subtitle configuration much easier. I never managed to get subtitles on my iTunes -> TV via airplay. Beamer made it easy. Well worth the $15