I got started many years ago, oddly enough by reading a novel (Elizabeth Arthur's "Antarctic Navigation") then going on to reading everything I could by or about about Scott, Shackleton, and other explorers (on up to Ranulph Fiennes). In December 2012, I traveled with some friends in Europe, and there just happened to be an exhibit in London at that time at the Queen's Gallery, The Heart of the Great Alone, with photography from the Scott and Shackleton expeditions - needless to say, I was thrilled beyond belief. There was a lot of large format stuff and also photos from the camera found in Scott's tent with the bodies. Just amazing stuff, beautiful and/or very moving.
Most recently, saw a documentary on Netflix, "Arctic Extreme" - a truly grueling Russian/Slovak expedition.