A little more than a year ago, Amazon launched its first set-top box, Fire TV. That was followed by the weaker, but far more wallet-friendly littler brother, Fire TV Stick. Now that the company has been in the streaming market for a little while, a refreshed version of its flagship box makes sense, right? I mean, there's technically nothing wrong with the first Fire TV, but more horsepower and support for more modern resolutions are always better, right?

Actually, no. There are definitely some quirks that you should be aware of before jumping into a new Fire TV — especially if you're just upgrading from the old one.

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