The truth about Ultra HD 4K TV refresh rates

The fact is that nearly all of these new 4K TVs -- which now make up the increasing majority of all TVs priced over $1,000 -- have, at best, a 120 Hz refresh rate. Actually, many of the least-expensive are actually 60Hz, and none that we know about are 240 Hz.

There are two things at play here. The first is simple, and one we've said many times before: don't trust marketing. At least, don't trust it at face value. Marketing is designed to sell you a product, not give you information about a product. That's secondary.