I have two systems, one running Windows 7, the other running Windows 8. They have the same motherboards, processors and tv tuner cards (Hauppauge HVR-2250).

In Windows 7 I can see all my local stations and the guide data for those. So I can record the OTA (over the air) content.

In Windows 8 w/Media Center, I can see and record all the stations, except one. On this one station, I cannot see the guide data and cannot record any content. I can see the content if I go to live TV using the tuner card.

The station changed their transmitter in November and advised everyone using the OTA signals to rescan for the new transmitter. This channel, a local CBS affiliate, also shows up in the series 9000 internet channels I see in Media Center, but have not yet been able to access.

So, does anyone know the current state of OTA content protection and if this station might be using it? I can find no other reason for the blocked guide data.