We had one that my husband used it to store our old lp albums in. This one had a door but you could buy louvered doors and put on it to store just about anything in it.
We used to have a TV repair and sales shop, so we often got in old TVs. Most weren't good for anything, but once we got one that was a dry sink in dark pine, just the color of my mother's dining room furniture. We took it to some Mennonites to have them put doors on it and shelves inside. It made a wonderful addition to her dining room and stores a lot of dishes. Some people made desks out of them or bookcases.
I have a nice one in my living room that has doors. I just put one shelf in it and it has been amazingly useful, holding all kinds of things that don't look so good sitting out. Telephone books, cameras, batteries, that kind of thing.
Also, I have several power tools mounted on top of old TV cabinets, since they are VERY strong.
If the cabinet has doors, they make great liquor cabinets.