Medieval history… dull dull dull. Except when Terry Jones does it. I only caught the last two episodes of Medieval Lives, but it was just smashing. Much was learned: Good King Richard I (actually bad); Bad King Richard II (actually good); Hunchback King Richard III (complete fabrication). Or that medieval society was very litigious, spending much time in court rather than, as I probably thought, eating mud or something.
Reading an interview it looks the whole series would be pretty good.
There’s also a book of the series, but I don’t know what that’s like.