The Vienna State Opera are kindly giving Intermezzo readers the chance to try out their live streaming service (normally €14 a pop) for free.
The service, launched in late 2013, offers live opera broadcasts in Full HD. While you're watching, you can switch between the standard multicamera setup with close ups and a fixed full screen view (as if you're sitting in the auditorium). Multilingual subtitles are available on a separate device, and you can choose whether you start the stream live, or delay it for a few hours.
Here's the message from the Vienna State Opera: