I contacted Jim Moore of WDAF about HDTV, here is his response...
Hi Gordon. Thanks for your interest in WDAF-TV and Fox. HDTV, digital TV, DTV, SDTV, 108-i, 720p, 480i, 480p, all mean diffent things to different people, and most stations are treating these differently. But, keep in mind, at least for now, that most of the programming, content information, is still NTSC analog in a 3x4 format. So, whatever the digital format we select for transmission, it is still an analog formatted picture. To do anything else with NTSC produced content simply distorts the picture and the program providers did not like that one bit. Fox has chosen as their digital standard 480p (16x9) widescreen, but again the content is still analog 4x3, ie., the black wings on the picture (if you have a wide screen set) fills out the scree. This, also goes for the FOX network. They, are also sending analog 4x3 at this time . In summary, for now at least, it is the production
format of the analog programs that is driving the digital tv wagon. Hope this helps.
At least he responded in a timely manner (one day..) Can't say the same fr those people at KCTV or KSHB