@RockandRoller70,
I did some investigation and you are right about their promises... to be able to handle anything thrown at them .... but best to be patient for a bit because ATSC 3.0 is still BETA ... Lets all try and get along. 
A Young Standard and a Commitment
The ATSC 3.0 standard is just getting started and we don't yet know how broadcasters will use all the newly available features. Features like overlays for TV shows or sporting events, interactivity, DRM, and even personalized ads are all possible with this new standard.
We are committed to supporting anything the ATSC 3.0 standard throws at us, and at the same time doing whatever is best for our customers. To this day, we still provide support and firmware updates for the very first HDHomeRun product sold back in 2007. We are just as committed to this new HDHomeRun QUATRO 4K as we are to every other device we've built.
ATSC 3.0 broadcast channels can be DRM protected and DRM playback is not yet supported. We plan to support DRM playback where possible however it is expected that some client platforms will not be able to support playback of DRM protected channels.
HDHomeRun ATSC 3.0 by Nick Kelsey, Silicondust USA Inc — Kickstarter