Ultra HD, colloquially known as "4K," is everywhere on TV shelves and online this year. Previously restricted to only high-end models, 4K resolution has become so inexpensive that your next 50-inch or ...

4K TVs are seemingly everywhere right now, but what does 4K mean and what’s Ultra HD TV? For that matter, what’s 8K and will TV get better than this? We explain everything. This year we’ve seen the ...