I've heard (I put them on while at work) countless times the episode about Sir Sidney Smith or Hannibal and his feats in combat. I find them the most entertaining and educational. It can be also that I love trivia and those videos are full of it :-)
Since I'm polish and live in Italy I would like to suggest the following: - Tadeusz Kościuszko; defended Poland from Russians and helped Americans in the war of independence. He had a very rich and interesting life. - General Władysław Anders and his army; started in Russia, ended up in Egypt with a domesticated bear, and later fought at Montecassino and on the Adriatic coast (can personally provide some photos and trivia, since I live near some points of interest (Battle of Filottrano, Battle of Bologna, Battle of Ancona).
- Giuseppe Garibaldi; famous for bringing Italy together with only 1000 men (he recruited some more along the way though). A man of honor and a good general. Fought in South America in his later years. He's called the Hero of Two Worlds.
Post here some other interesting historical figures you would like to see in a video :)