“Streaming services Netflix and Amazon offer both 4K and HDR, but not on every title (although most original series and movies on both services are in 4K HDR). You can also rent or buy new 4K HDR movies on iTunes, Vudu and Google Play, or invest in a 4K Blu-ray player and discs to play on it. Actual 4K and/or HDR TV channels are still nonexistent in the United States, however.
Bottom line? All of the best TVs are 4K TVs with HDR. If you’re shopping for a medium-size or larger TV, you’ll probably end up with a 4K one anyway, and chances are it’ll do HDR, too.”