George Washington is the only president who did not occupy the White House.
It was built during the administration of John Adams, his immediate successor.
A number of university political science departments offer a class about the American Presidency, which is 3 credit hours, and thus includes 45 clock hours of lecture. I've watched over 50 hours' worth of presidential biography documentaries, and learned about the lives of 18 of the 44 Americans who have held the office, including every Cold War president but Gerald Ford, and every president shown on our currency. Their combined years in office add up to slightly over half of American presidential history.
It's not as good as a class, but still pretty cool to me. I've had some good "lectures" about a number of our presidents' lives, and all of them make use of visual sources of their subjects, such as period paintings and sketches - or for later presidents, photographs and film footage.
Here's a list of the presidents, with the total minutes of the longest documentary film I've watched about each one. (For those I've watched multiple documentaries about, I decided to only include the minutes of the longest one.)