At Armida we were given handouts for the Summer HD Encore Series.
Aida June 16 & 17. For my money I would skip this. I'm going to Italy and will be seeing this at the Baths of Caracalla.
Romeo et Juliette June 23 & 24. This is with Anna Netrebko & Roberto Alagna. Roberto seems to be having a resurgence in his career these days. I enjoyed this and may go again.
Eugene Onegin July 7 & 8. I will be in Italy, but you should go. This is still the best of the bunch.
La Boheme July 14 & 15. This was pretty good.
Turandot July 21 & 22. For Guleghina. Unless you haven't seen this opera very much, then go for the whole thing.
Carmen July 28 & 29. Well worth seeing again. Number 2 on this list.
$20 for an opera is cheap. I hope these are showing in your area.