This is interesting. I use OTA antenna tv everyday, almost exclusively. I almost forgot OTA HDTV still uses the mpeg2-ts, similar to the dvd codec. Newer tv hardwares (>2010-ish) all can decode h.264 and h.265, theoretically, since they utilize internet streaming apps and services.
I smell a new format war a comin’.
I say, go right for the h.265, or better – a proprietary codec (like youtube and\or everyone else is doing). Because no way am i going to “buy” a DRM-protected thing for every broadcaster… I’m currently pulling-in 20+ stations.

And that may be the other format war… to pay or not to pay.