No subject

[Larry Weil]

> On Mar 29, 2016, at 3:43 PM, Mark Laurence <marklaurence@mac.com> wrote:
> 
> I don't think any X.2 subchannel broadcasts in HD.  I know 5.2 (as well as
> 4.2, 7.2, 25.2, 25.3, or 56.2) is not in HD over the air.
> 

Nor is there any need to, as most of the material airing on those subchannels was produced years before HD existed.

There’s also a bandwidth issue, if the main channel is full HD (1080i) then there is not enough bandwidth left to broadcast another HD stream.

Larry Weil
Lake Wobegone, NH