I love the Internet Archive. It's a bottomless pit of movies, classic TV shows, radio drama, Grateful Dead concerts, books, audio materials, comics, and thousands of other things that are hard to categorize. The materials on the site are for the most part either public domain or under various types of free license. I've embedded a video I found in the archive this evening. It's a 1954 television show hosted by Liberace, that leads off with his piano rendition of "Turkey in the Straw". The thing that fascinated me about it is my realization that it aired when I was three years old.
The Internet Archive is a treasure trove of cultural artifacts like this. You should dive in and explore it.