Wow, we must have really similar taste because I agree with you about all these works except for the one I hadn't heard of, Black Ships, which sounds interesting.

My partner and I are currently watching I, Claudius, as it happens. It's his first time seeing it and my first time in about 20 years, so it's fascinating to see how it plays today: still very well. And Game of Thrones owes a lot to it.