Paywalled, so I'm wasting zero time going there.
For full length performances, annotated by Sean Bianco, and archived at capradio.org:
https://www.capradio.org/search?q=at%20the%20opera%20wagner%...
They are out of order, this being search, but FREE.
For a hilarious explanation, this classic by Anna Russell.
All in one: (random graphics)
Serialized, video of a live performance.