[mythtv-users] DTV: It Has Begun
allen.p.edwards at gmail.com
Tue Sep 9 03:49:23 UTC 2008
On Mon, Sep 8, 2008 at 8:47 PM, Allen Edwards <allen.p.edwards at gmail.com>wrote:
> If you all really want to know the driver for ATSC was PBS and FOX. They
> came late and had, in most markets, frequencies the led to poor reception.
> They were the drivers behind the early work. The goal was digital
> reception that wasn't subject to snow and other quality issues. There was
> also the feeling that if they didn't improve reception OTA, that cable would
> take all their market. Another of the driving companies was Zenith. They
> felt that they needed something new or they would be out of business.
> If you remember, the early competition was between standards proposed by
> Zenith and standards proposed by General Instruments. Zenith proposed 8VSB
> and their own encoding system. GI proposed QAM and MPEG. The final
> specification, as you know, is one from each, 8VSB and MPEG. There was also
> a spec war between the two with one proposing 720p and the
> other proposing 1080i. The final spec allowed either and almost any
> resolution. So, it was opened up from an original HDTV race to just DTV
> with lots of options.
> Well, things took way longer than they expected, Zenith doesn't exist in
> its original form and GI doesn't either.
> At some point, the government realizes that they could cram all the
> stations into less spectrum with the new format and sell off the parts that
> were better used by other services. I think that came later.
Oh, and I almost forgot:
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the mythtv-users