PTBoardOp94 said:I just hope that the technology improves to have larger bandwidth than what's available now. As it stands, a station that wants to have subchannels can only run 1, maybe 2 HD channels, and any remaining bandwidth would allow an SD channel.
The amount of bandwidth is fixed (by the FCC allowing 6MHz channels and the laws of physics).
However, current technology does allow for better digital video compression. The compression algorithm used on DTV is more than decade-old technology. With h.264, for example, I would guess 3-4 720p broadcasts could be put in on 6MHz channel.
Doing that would require everyone get new tuners again, which probably won't happen.
I just hope that it would be implemented, but keep it backwards compatible for older tuners. It was unfortunate that WTTW couldn't run a 1080i main channel and 3 SD channels, that they had to downdrade the HD channel to 720p in order to run the 3 SD channel with no trouble. WLS-TV pushes it now by running 2 720p channels. Livewell HD on 7.2 doesn't always have a clear picture.