Ken Burns ha done some amazing doco series. The Civil War is excellent, as is the one about WWII, but his best is Baseball. Yes, I’m completely biased, but if you’re a fan of baseball you must watch this.
I’m a documentary tragic in that I’ll watch just about anything of interest. Nazi Megastructures is over the top and the recreations are often laughable, but it covers some really interesting topics like the Channel Island defences and the U-Boat pens in France. The Seven Wonders of the Industrial World was really well done (covered the Panama Canal, Brooklyn Bridge, Hoover Dam, London Sewers, Bell Rock Lighthouse, Great Eastern steamship, and the Transcontinental Railroad). I also loved the ones about life after people that showed what would happen to the planet over different lengths of time if people died out/disappeared.
I’ve got Optus TV at home with the Nat Geo and Nat Geo Wild , but no History or Discovery Channels unfortunately. Luckily that’s what VPNs are good for.
I’m also a sucker for any show set in Alaska as I love the scenery.