Buying a TV used to be simple โ you picked a size and a brand and went home. Today it's a wall of numbers: 4K, HDR, OLED, QLED, 120Hz, VRR. It's enough to make you want to keep the old one forever.
Here's the encouraging truth: you don't need to understand every TV spec. You need to know a handful of things that actually affect what you see, and match them to your room and budget. This guide gives you that, in plain terms.
What we'll cover
Size & viewing distance Resolution: 4K is the standard OLED vs QLED vs LED HDR: worth understanding Choosing for your roomSize & viewing distance
The most important TV decision is size โ and most people buy too small. The general rule is simple: the bigger the screen relative to your viewing distance, the more immersive it feels.
A rough guide to match size to distance:
| Viewing distance | Good TV size |
|---|---|
| ~6 feet (1.8 m) | 50โ55" |
| ~8 feet (2.4 m) | 60โ65" |
| ~10 feet (3 m) | 70โ85" |
Measure your room and choose a size that fits your distance and wall. Don't be afraid to go a bit bigger than you think โ most people end up wishing they'd gone larger.
Resolution: 4K is the standard
Resolution is how many pixels the TV has. 4K (also called Ultra HD) is now the standard โ it's four times the detail of the old 1080p, and it's what most content is produced in these days.
- 4K: The sweet spot. Nearly every modern TV is 4K, and it looks great for streaming, gaming and movies.
- 8K: Double 4K, but there's almost no 8K content and it's expensive. Skip it โ 8K isn't worth it yet for most people.
- 1080p (Full HD): The older standard, still fine for smaller, budget TVs, but you'll want 4K for anything larger.
The practical advice: buy a 4K TV. It's the standard, it's affordable, and it's what you should look for. Don't pay a premium for 8K.
OLED vs QLED vs LED
The "panel" technology determines picture quality, and this is where the biggest differences live:
- LED (LED-LCD): The most common and affordable. Good brightness and picture, with varying quality by model.
- QLED: A type of LED with a quantum-dot layer for brighter, more colorful images. Excellent brightness โ great for bright rooms.
- OLED: Each pixel lights up individually, giving perfect blacks and stunning contrast. The best picture quality, but pricier and not as bright in very sunny rooms.
๐ก Which is right for you?
For most people, a good QLED or LED TV is the best value โ bright, colorful and affordable. If picture quality is your top priority and you watch in a dim room, OLED is the premium choice with unbeatable contrast.
HDR: worth understanding
You'll see "HDR" on every TV box. HDR (High Dynamic Range) improves the range of brightness and color โ brighter highlights, deeper shadows, more vivid colors. It's genuinely noticeable on good content.
Here's what you need to know:
- HDR makes a real difference โ more than resolution in many cases, especially on 4K content.
- Better HDR = better TV. Higher-end TVs support formats like HDR10+ or Dolby Vision, which look better than basic HDR.
- Most modern TVs support HDR. It's a feature to look for, not a reason to overpay.
If you stream 4K content (see our streaming guide), HDR is a nice-to-have that genuinely improves the picture.
Choosing for your room
Here's how to pull it all together based on your situation:
โจ Don't forget audio
Modern TVs are incredibly thin โ which means their built-in speakers are often mediocre. If sound matters to you, set aside part of your budget for a soundbar. A good soundbar transforms the experience more than most people expect.
๐ Bottom line
Buying a TV is simpler than the spec sheet suggests. Pick a size that fits your viewing distance (and don't buy too small), choose 4K as the standard, and match the panel to your room โ OLED for the best contrast in dim rooms, QLED/LED for brightness in bright rooms. Look for HDR and the smart apps you need, and budget for a soundbar if you care about audio. Get those right, and you'll love your TV for years.
