Have you ever listened to/watched an opera all the way through?

Yes, I've completed a few. And I've attended two live. Usually I first become familiar with excerpts before listening to the entire performance. It takes a lot of patience which I didn't have until later in life. Wagner tends to be heavy, lengthy and often an acquired taste. In my opinion it's not the place to start. Mozart operas are lighter and shorter. The Magic Flute was my first opera.