Keep in mind, some of the less expensive 55-inch TVs offer a narrower viewing angle, which is probably fine in a bedroom. However, if multiple people will be watching the TV in a living room ...

A 55-inch TV is also a good fit for a bedroom where you might want something smaller than what you've got in your living room ...

An 80-plus inch TV can easily just dominate a space. Wall mounting can help a bit, but your TV room risks becoming the TV's room. Read more: Sizing Up Your Next TV: Here's Where Big Screens Are ...