https://www.cnet.com/news/samsung-qled-tvs-2019-take-on-oled-with-bigger-screens-than-ever/

TVs 65-inches and bigger have been growing in popularity every year since 2016 as prices on big TVs continue to fall and shoppers replace their main TVs with something bigger. Samsung cites IHS Markit, saying the market for 75-inch or bigger TVs is expected to grow by 43% in 2019, to 3 million units, and expand to 5.8 million units by 2022.

Another big reason for Samsung to push big TVs? Its main rival among high-end models, LG's OLED televisions, top out at 65 inches. Sure you can get a 77-inch OLED TV for $7000, but Samsung's 75-inch QLED sets typically cost half that much or less.