The Royal Opera House is transmitting one live performance per month to 1'000 cinemas all over the world. In October, it is Don Quixote (ballet).
I went to the cinema to see Turandot, in September, and it was absolutely great; actually, I was quite surprised by the sound quality.
So, why not try the ballet? Here are the details and a clip:
Music: Ludwig Minkus, Director: Martin Yates, Choreography: Carlos Acosta, Cast: Carlos Acosta, Marianela Núñez
Date & Time: October 16, at 8pm
Place: Corso 1, Theaterstrasse 10, Near Bellevue
Tickets are CHF 38 (CHF 30 with the Carte Bleue - which I have, so I can get a number of cheaper tickets)
Duration: 180 minutes
We can meet at 7.30 in the entrance hall of the cinema and buy the tickets together. If there is an interest in having dinner before, that would be at 6.30 at a restaurant around the corner, but that depends on interest level.