With all the TVs available today, and all the technical terms and jargon associated with television technology, it can be tough to figure out what’s important. Here’s a quick guide to help cut through the confusion.

Price: TVs range in price from $100 to more than $2,000. Smaller screens are cheaper, well-known brands are more expensive, and spending more money can also get you better image quality. Most entry-level TVs have a good enough picture for most people, but TVs last a long time, so it might be worth spending more to get a better picture. It’s also best to shop for a TV in the fall, when prices are lower.

Screen size: Bigger is better in our book. We recommend a size of at least 43 inches for a bedroom TV and at least 55 inches for a living room or main TV — and 65 inches or larger is best. More than any other “feature,” stepping up in TV screen size is the best use of your money. One of the most common post-TV-purchase complaints we’ve heard is from people who didn’t go big enough. And we almost never hear people complain that their TV is too large.

Capability: When it comes to entry-level TVs, the most important feature is what kind of smart TV system the TV uses. Among midrange models, look for a feature including full-array local dimming, mini-LED and 120Hz refresh rate, which (unlike some other extras) do help improve the picture, in our experience. And among high-end TVs, OLED technology is your best bet.

For more TV buying advice, check out How to Buy a TV.