Well I was trying to be diplomatic about it, but yea, I sure wouldn't want 2 HD's crammed on a single OTA signal. Unfortunately, there are some other areas (beside the ABC O&O's w/the LW crap) that are attempting 2 HD's - one is WGXA Macon, GA, who is running both FOX & ABC in HD. (ABC was dumped from the previous local affiliate & WGXA picked it up & squeezed it on their existing FOX HD signal) The reports on it are on the Macon, GA DMA link & they don't sound all that bad - but I guess you'd have to see it for yourself:http://www.avsforum.com/avs-vb/showt...138429&page=55
While in a perfect world I don't want 2 HD's on 1 ch, there probably are better ways to do it than how WLS is doing it - such things as the encoding, equipment used, how it's prog, etc. all play a part in the ultimate outcome.
For example, look at WCIU - even in spite of them cramming FOUR SD subs on top of their primary HD signal, it's my understanding that their HD quality is still pretty darn good. (I can't see it for myself, but just from what I've read on posts about them) But they have techs that continually tweak the signal to keep it at it's best.
The quality of the SD subs are probably a different story, though...