Yes, I, Claudius was appointment television for much of the country when it aired here. I can remember talking about it for weeks at work on Monday after each Sunday airing. Another masterpiece that I've watched through many, many times.
Yes, the mostly studio-shot scenes are on videotape, and when they step outside, it looks to be film. It always struck me as a strange amalgamation of the two mediums.
I couldn't count how many times I've watched Elizabeth R. My favorites are "The Lion's Cub" and "Horrible Conspiracies."
Probably not in my lifetime will any actress be able to surpass what Glenda Jackson accomplished in her six-episode triumph as Elizabeth I in Elizabeth R. Every one of the six programs is a masterful film on its own and collectively show the queen from her teens to her death. Amazing...