How to Buy a TV: What You Need to Know Buying a TV is more complex than ever. There are new technologies, formats, and buzzwords you have to keep up with. Plus, pricing is also all over the place as more affordable companies try to unseat brands like LG and Samsung. Choosing a Display: OLED, QLED, and More Currently, there are two dominant display technologies on the market: LED-LCD (including QLED) and OLED. Understanding the differences will help you make the right decision. A simple rule of thumb is to match the display type to your viewing habits. Most TVs on the market are LCD panels lit with an LED backlight. These include the cheapest new TVs, from brands like TCL and Hisense, all the way to LG’s NanoCell lineup and Samsung’s top-tier QLED sets.