Richard got a Vizio 4K TV and suddenly it says his TV isn't capable of receiving 4K, when it has been for the last two years. Leo suspects there's a "handshake" problem between the DirecTV box and the TV itself, and it's usually the culprit of HDMI cables. He should try replacing the cable first. But he'll have to be sure to have a cable that is certified for high speeds of 18GB per second. Amazon sells them for about $10. He could also try another HDMI input to see if that fixes it.
Frank recently got a 4K smart TV and he lives in a remote area. He has a limited amount of bandwidth per month, so streaming 4K content would quickly put him over his cap. Leo advises taking his TV off the internet and just use a UHD Blu-ray player. Then he can rent Blu-rays from Redbox or Netflix. Leo recommends the Xbox One S. It's a game console, but it also has a Blu-ray DVD player built-in for games.