As I recall, the so-called Royal Albert Hall concert was televised, I think as "In Concert" on BBC2. I understand that the videotapes did not survive (the BBC presumably thought they were not important enough to keep!) but the sound track is the album.If it is the same one, I saw it. I had just about heard of Bob Dylan at the time and until I saw that performance had not much idea of what he was really about. That for me was a life-changing experience.
Around the same time, another young man was making waves in a different field - a certain Cassius Clay. What a time to have lived through at the perfect time in one's life. I'm so lucky.
Cheers, Terry