Originally Posted by Kansas Zephyr
There is no "non-HD channel" anymore. Dual analog/digital over-the-air broadcasts are no more, for full-power stations.
Just to reiterate, with the shutdown of KAKE's analog channel 10 on February 17, 2009, there is only ONE signal being broadcast, an ATSC 720p DIGITAL signal on VHF Channel 10. The old digital broadcasts on UHF Channel 21 are gone forever!!
And, yes, there's only one feed going to Cox cable and AT&T UVerse now, the same thing that's broadcast over the air. Before the transition, the analog side (VHF Ch. 10) could broadcast the ABC SDTV network feed with severe weather tickers, while the digital side (UHF Ch. 21) was being fed with the direct ABC HDTV network feed WITHOUT tickers.
As of June 2, ABC dropped their SD satellite feed, as they're only sending affilates a full time HD feed, with some shows (especially reality programming) being upconverted for broadcast.
If you see a 4x3 picture on ABC and your Dolby Digital 5.1 audio indicator is on, then you're watching an ABC network upconverted
show. Non-network local progamming on KAKE is always in Dolby Digital 2.0 audio.
The reason it looks like the old analog signal at times is that in order to put in the severe weather information, the ABC network HDTV feed must be downconverted to standard definition to run through their plant (and compostite analog at that, not even serial digital), as at present there is no way for them to insert anything
over HD programming. This includes tickers, maps, crawls and EAS notices.
The resulting SD composite mush is then upconverted back to HD for broadcast.
I've been told they're working on a way to accomplish staying in HD all the time during network programming, but it all boils down to time and especially, the considerable funds to buy the necessary equipment, which is something that should have been done a long time ago, IMO!!