[mythtv-users] [OT] *Real* High-Def TV!

[Michael T. Dean]

Joe Barnhart wrote:

>--- "Michael T. Dean" <mtdean at thirdcontact.com> wrote:
>
>>Do any broadcasters actually use 1080p, anyway (either 1080p30 or
>>1080p24)?
>>    
>>
>I don't think so.  I don't think it is one of the specified ATSC
>standard rates, is it?
>  
>
It is, although I really can't see much of a use for it (other than 
maybe for stills).  See 
http://www.hdtvprimer.com/ISSUES/what_is_ATSC.html for a list of all 18 
formats that are included in the ATSC specification (listed under the 
column "Format name").

>I get over half my shows in 1080i here in the S.F. Bay Area.  My PBS,
>CBS, and NBC affiliates broadcast in 1080i; while Fox and ABC broadcast
>in 720p.
>  
>
Wow.  So--factoring in JDS's response ( 
http://www.gossamer-threads.com/lists/mythtv/users/131855#131855 )--does 
that mean that local affiliates choose the format?  It would make a lot 
more sense for the major networks to choose a format and for their 
affiliates to use that same format (i.e. NBC chooses 1080i and all 
affiliates broadcast in 1080i).  If the affiliates choose the format, 
does that mean the networks provide both formats to affiliates?  (I 
can't see re-encoding of the real-time feeds actually working--not to 
mention it doesn't make sense to re-encode from 720p to 1080i or vv.)

Mike