I'm hoping someone here might be able to help me out. I'm in Evanston, and I pick up my TV from the free channels that Comcast broadcasts in the clear over their cables.
When I plug the cable directly into the back of my TV, I pick up everything just fine. However, I also have a home-built DVR (running Mythbuntu, if it matters). I recently upgraded it and after doing so have not been able to get my DVR to tune to any of the HD WLS channels (7.1 7.2 7.3) or the WGN channels (9.1 or 9.2). (There may also be some other channels I can't pick up, but those are the only two I noticed. I can get WBBM, WFLD, WMAQ, WTTW, etc just fine.)
I understand that the 7.1 "channel" is not a "real" frequency. Does anyone know what the real frequencies that Comcast is broadcasting these at is? I checked on silicondust (their channel tables) and all of the frequencies I get in my scan match up with what they have except for WLS and WGN, which I can't seem to find. I.e., according to silicondust, WLS-HD should be broadcasting on real channel 29-1, which corresponds to frequency 255MHz. (If I'm wrong about this please someone let me know.) However, when I scan that frequency I get nothing.
Does anyone know if that data is still correct? I'm trying to nail down if it's a problem with my software or with something else going on.
Thanks in advance,