The world of televisions can be complex, with all kinds of industry jargon. Don't worry, we'll tell you what you need to know. After that, we give you CNET's recommendations on which 4K TVs are best. You can see the products featured in this video here 👇 LG OLED G1: https://bit.ly/3BJA9Co Samsung QN55QN90AAFXZA: https://bit.ly/3CPm2N6 TCL 55-inch 6-Series: https://bit.ly/2ZVlR4v *CNET may get a commission from these offers. Best 4K TV for 2021 https://www.cnet.com/tech/home-entertainment/best-4k-tv/ What is TV contrast ratio? https://www.cnet.com/tech/home-entertainment/what-is-contrast-ratio/ Dolby Vision, HDR10, Technicolor and HLG: HDR formats explained https://www.cnet.com/tech/home-entertainment/dolby-vision-hdr10-advanced-hdr-and-hlg-hdr-formats-explained/ Subscribe to CNET: https://www.youtube.com/user/CNETTV Like us on Facebook: https://www.facebook.com/cnet Follow us on Twitter: https://www.twitter.com/cnet Follow us on Instagram: http://bit.ly/2icCYYm Follow us on TikTok: https://vm.tiktok.com/ZMd2h6yac/