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Thank you for such a comprehensive and helpful reply! I've got some things sorted but I still haven't figured out the PBS problem...

Originally Posted by mtownsend

It looks like both of these transmitters are carrying identical content on their sub-channels (both transmitters are owned by Spokane Television, Inc.), so you don't need to receive both of them. It also looks like one of the signals is easier to receive than the other, so hopefully there's a way to manually delete RF channels from your TV and tuner card channel list so that the "bad" channel is no longer included in your lineup.

I went in to the edit sources setting in Windows Media Center and both signals were listed and apparently being merged to give the one listing I saw. Turning off the weak signal fixed the issues I was having and now ABC is coming in clear and reliable.

However, channel 22.1 (CW) hasn't been giving a good signal lately. Looking at the TVFool report it seems I should be able to get that channel as well as all the others. Any suggestions?

Originally Posted by mtownsend

I know there have been issues with things like Windows Media Center Edition where the software references a channel database that might be out of date. People discovered the hard way that the software would not allow them to access some new transmitters until the master database was updated with the changes (which might take days, weeks, or months).

That is what I had feared...do you know of anywhere I can find further information on this or if there is somewhere I can report these changes to get the software updated?

Originally Posted by mtownsend

Does the HVR-2250 have a "memory" of channels that were successfully scanned in the past (kind of like the way TVs memorize channels from an auto-scan)?

Some converter boxes had a problem where they would not clear-out their channel memory on each auto-scan, and this created a problem around June 12, 2009 when lots of transmitters jumped around to new channel assignments. The only way to fix this on some of the boxes was to do a "double-rescan", which meant 1) disconnecting the antenna, 2) do a full auto-scan that should end up with zero results, 3) power cycle the device, 4) reconnect the antenna, and 5) do another full auto-scan to detect the new channels. On some boxes, the extra first scan was the only way to make the device forget about previously mapped virtual channels.

I don't think the card has memory like that but I have removed the card and reformatted and reinstalled everything since the problem started and that didn't help at all.

I have been trying to get a hold of Hauppauge tech support to ask about that but they are always busy and I've seen quite a few negative reports on their customer service around the net so I have a feeling I'm on my own as far as hardware is concerned.

Thanks again. I've learned a lot about OTA TV in the last few weeks thanks in large part to the great community here. Keep it up!