I'm watching the #SFGiants playing the #NYMets on Fox via an OTA antenna. I'm going back and forth between the older #ATSC1 broadcast and the new #ATSC3 broadcast. Even though the ATSC3 is still using regular HD (not 4K) the picture is better (better color accuracy) and the sound quality is also improved. I'm assuming the new #HEVC codec is the reason.