It has been "produced", just not released yet.
Without going into specifics, the holdup is a specific software/firmware issue they are having. They don't want to release it until it is solved.
Allen didn't mention exactly what it was and no date was discussed either.
He also stated about additional features being added after the first product release.
Free, abundant OTA television separates this country from many others. ATSC1 has only been in force since 2009. The wireless industry has enough spectrum. Enough of 'planned obsolesce'.