There's a station here in San Diego called MyTV at major 36, minor 13, freq 51, but Media Center only lets me add a one digit minor.  Two other tuner apps (TotalMedia and Media Portal) scan and find 36-13 without problems, but I'd prefer to use Media Center, if possible.  Ideas?

You mean using "Add Missing Channels" / "Add Digital Channel" you cannot add past 36-10? Or are you trying to change the second number manually?

Personally, I have never tried past 4 channels, but it would seem that you should be able to go into the double digits on stock Vista install.

If you cant do it through the Add DTC Channel menu, I would try adding it with a 1 digit subchannel number via that menu and then manually editing the atscprefs.xml file to the correct subchannel.

It probably wont work. MCE might be unable to read more than 1 digit.

Yes, Add Missing Channels/Add DTVChannels will not let me enter a two digit minor.  Weird, huh?

 I already had added 36-1 and 36-2, and they are working fine.  I tried adding an entry for 36-13 in atscprefs.xml, and when I go to Add Missing Channels, it will be listed.  It is not listed, however, in the main channel listing (when I go into Edit Channels, for instance).