They also use google or 1 other 1 I’m not remembering atm! Depends on brand of tv! My parents just got a new tv couple months ago so I was tasked with looking into the features to compare them!
@Mossy for newer tv’s the refresh rate and the upscaling in the tv has to do with how smooth the image is and how bright and clear the picture is when u are streaming what you are watching! Then the type of picture (4K, LED, ULED etc) has to do with the number of colors the tv can display! Also has 2 types of background black or white and couple diff types of backlighting used for how much the colors pop off the screen!