I’m trained as a historian, and my specialization was the Tudor era. I most assuredly have done the research!
My research skills aren’t in question, rather the revisionist history/’history with an agenda’ movement, that’s all.
Very few people have the time or inclination to do research. They tend to assume what they see is accurate, just because it’s on tv. It’s more insidious when it’s a costume drama on PBS, because there’s an implication that it’s educational, and educational must automatically = 100% accurate & unbiased.
not every one is as thoughtless as you suggest