Ciao, Opera Mavens. The Vienna Staatsoper streams its subtitles on your cellphone. There’s an app for it. See Subtitles for Iphone/Ipad and Android. You aim your phone toward your sound source and the sound triggers the subtitles. I tested this on Nov 4 with Vienna’s L’italia in Algeri. Worked beautifully. Their next stream is Janacek’s Katya Kabanova today. Try it.
Also, you should keep up with Europe’s Opera Vision. They are currently presenting an excellent Le Nozze di Figaro from Garsington (an outdoor theater in the UK) with English Subtitles. Figaro is sung by Joshua Bloom (Merola 2003). They also have several other performances at this link: