when i worked at best buy end of laast year u couldnt just watch anyol show on any chanel in 3d..it had to be a chanel built for it or a 3d blue ray.
also take into consideration the glasses wont work on other brand tvs so your sony wont work with ur lg ectect so i would get the 10 glasses deal.
personally the people i spoke with that had a 3d tv woudl come back in for a different tv because they never use the 3d after a while wearing the glasses become a pain and the 3d gives u a headache.
just my 2 cents