Originally Posted by llaves
thanks - this was precisely the information I needed. My symptoms exactly match the corrupted PSIPs described in the sticky. My problem is not that 5.1 comes in on 5.3, but rather that keying in 5.1 gives 5.3 and then up-channel takes me to 5.1 This renders timers useless, as noted in the sticky. My only hope is for Comcast to fix their corrupted channels.
They likely won't.
You have the same problem I do with a PBS station here. It has four sub-channels (or three...they're .1 up to .4), but we can't tune .1 directly because apparently Comcast assigned some other channel to that main channel number, so it's also claiming to be the .1 for that channel. (Of course, with all the cable channels being scrambled and only the locals being in the clear, I have no idea what channel the other .1 is.)
Anyway, if I key in the .1 channel number, I get .2. Stepping up to .3 and then .4 and beyond will THEN get me to .1, but to record it I have to leave the machine on and tuned to it. As with your 5.1, there's no way to do a timer record if the machine is left off.
In your area, some other channel must also be claiming to be 5.1, due to Comcast's number system.
Seems to me this would violate SOMETHING from the FCC, but since they're more interested in cable cards than QAM tuners, maybe not.
You could always contact your nearest FCC office and describe what your local Comcast outlet is doing, making it impossible for your own equipment to tune a local channel on its own.
If they do anything, PLEASE tell us here. I'd like to be able to tune all our locals directly too.
As a side point, you might want to try recording from the analog version of 5.1, if your Comcast outlet is still sending out locals in analog. That should still be there. (It's the only way I can do a " leave the machine off" timer recording of that PBS channel. Happily it doesn't broadcast in high def, so the aspect ratio is the same on both versions. Yours might not be, tho'.)