Great article!! Just a few points I might make:
If you want to see digital broadcasts on an old analog TV set, you can buy a digital receiver. You'll see the images, and they will be pretty clear, but not nearly as good as a true digital set would show.
this may be nit-picking but, some older DTVs do not have digital inputs or an ATSC tuner, so I would fear that some of your readers might think they have an analogue set. This is not technically correct. If the STB is connected via component cables (analogue) to a DTV, the resulting picture quality (PQ) is nearly identical, and indistinguishable to the human eye. Please this for more info:
FAQ - DVI/HDMI Information
, specifically #2. They do not have to have a DVI/HDMI/Firewire connection for outstanding PQ. More important would be the native resolution of the DTV (many plasma/LCD have a native resloution of 768p, not 1080i/720p which are the ATSC standards) vs. the incoming signal from the STB, and whether the set has been calibrated.
These two stations were testing their digital transmitters in the fall, but are currently only broadcasting analogue @ channels 47 & 69. Again, I wouldn't want your readers thinking that they are currently on the air.
Thank you for helping to promote OTA digital television, and please post here whenever you can!!