Some OTA users will have missing channels once the TV Setup scanning has completed. This is due to Windows Media Center on Windows 7 not scanning the VHF frequencies (RF channels 2 - 13) during setup for ATSC signals. For those missing channels, it will be necessary to manually add them.
For missing ATSC channels, you will need to determine what the missing station RF channel is, along with what the virtual channel is, by looking that information up online, or using another source such as the tuner itself and its' software package. Some online resources include TV Fool, AntennaWeb, and RabbitEars.
For missing ClearQAM channels, you will need to determine the digital channel and physical channel from the tuner and its' software package.
Within WMC, you can manually add channels by going to [settings]→[TV]→[Guide]→[Add Missing Channels] from the Tasks menu strip and enter the appropriate information. Within EPG123, you can manually add channels as well. DVB and ISDB channels are not supported at this time.
NOTE: The ability to add channels in EPG123 will not be available while performing a Client Setup. You can perform the channel additions manually within WMC during Step 2: TV Setup or wait until after setup is complete.