Yes, they work nicely. But LG Cinema 3D already gives you four pairs for each set, right? The LG Cinema 3D TV glasses cost less than twenty bucks, so I think the price is quite affordable.
No, there's actually Vizio 3D TV called Vizio Theater 3D. They use the same technology as LG but don't have some of LG Cinem 3D's features. Also its 3D glasses are more expenvice than LG's. LG Cinema...