Buzz Bumble: I doubt 3D TV nor 4K TV will ever be a big thing. These days everything moves so fast that by the time TV show makers are starting to even think about using 4K, the TV set makers will already be trying to sell 10K, or 40K, ... or holographic TVs.
4k as a tv may not be big for a while, until they are affordable, however 4k for computer screens maybe. Instead of having multiple monitors, you can have like a computer monitor wall, with multiple windows open at the same time, great for productivity. A curved screen will help with this