There's actually a couple of those shows now, one on A&E(Storage Wars) and one on Spike TV(forget the name though). But knowing my luck if I tried doing the storage unit buying thing I'd end up buying a unit full of stuff that smelled like cat piss and was worthless.
That's how almost all storage auctions are. I've been to some and only seen one locker that tempted me; it was full of neatly packed boxes and there was some artwork bubblewrapped. The rest is only worthwhile if you sell used furniture or have a flea market. Lots of furniture, old clothes, and junk that people should have never paid monthly fees to store.