How to buy a new HDTV without getting ripped off

It’s the holiday season, and whether you’re heading out with the unstoppable horde of shoppers on Black Friday, or purchasing gifts online from the comfort of your home — or, let’s be real, your office — one of the most lusted after big-ticket items will be TVs.

Every brick-and-mortar store and online retailer is sure to offer some kind of ridiculous discount on televisions. But before you head out for that new TV there are a few things you need to keep in mind: like that curved screens are useless and how paying for a 4K display isn’t worth it if your TV isn’t larger than 50 inches. Oh, and avoid smart TVs. They’re just plain dumb.

Sony's HDR 4K TV.
Sony’s 4K, HDR TV. Don’t worry, I’ll explain what that means.

You know what, just follow these tips and thank me later.

Bigger is better, except when it’s not

If you’re in the market for a TV, the biggest decision you’re going to have to make is its size. Too big and it’ll dominate your room. Too small and you’ll spend most of your time squinting at the screen.

A number of publications point to specific formulas you can use to determine what size TV you should buy, depending on how far you’re sitting from the screen. And while they’re all helpful, the truth is your best bet is to simply go with the biggest TV that fits your particular room.

You can, for example, cut a piece of cardboard into the same dimensions as your potential set and pin it to your wall to see if you’ve got the right size TV. If you don’t have cardboard handy — because why would you? — you can use a tape measure to get a rough idea of how large your prospective television will be.

Resolution: Push it to the limit

Screen resolution all comes down to how close you’re planning to sit to your TV. That’s because the closer you are to the screen, the easier it is to see individual pixels — and seeing pixels ruins the image. Conversely, the farther away you sit, the harder it is to see pixels.

Older and cheaper sets that are 40 inches or smaller may still feature a resolution of 1280 pixels wide x 720 pixels high — referred to as 720p. Most sets larger than 40 inches bump the resolution up to full HD: 1920 pixels wide x 1080 pixels high (1080p). The majority of screens you’ll see this year that are 50 inches and larger will sport resolutions of 3840 x 2160 pixels, commonly known as 4K.

I sit aggressively close enough to my 42-inch 1080p set — like close enough to reach out and touch it — and I can barely make out individual pixels. If it were a 720p screen, though, chances are I’d be seeing those pixels all the time.

4K TVs.
If you’re getting a big-screen TV, for for 4K.

What about 4K TVs? Good question. A 4K screen has four times the resolution of a full HD display. That means images look sharper when viewed up close compared with a similarly sized 1080p screen.