Yeah, it would have been nice if NBC and the NFL had broadcasted Super Bowl LII in 4K, but they didn't. I got my Sony XBR-75X940E after the Super Bowl, but watching the replay upscaled to 4K looked really nice.
DIRECTV did broadcast the Olympic Winter Games in 4K and 4K HDR on Ch. 106, 24-hour delay of course. But,
WOW! The picture was awesome, especially in the Ski Jumping at night and Hockey and Ice Skating. And if you watched on the NBC Sports app on TV, the video was upscaled to 4K on my 940E.
So, hopefully, Super Bowl LIII will be in 4K HDR, but the 2020 Olympics Summer Games in Japan will be in 4K, as they're actually going to broadcast it in 8K in Japan.
So, there's hope...
And DIRECTV does broadcast other
sports in 4K on Ch. 106.