I just received the QAM updated firmware from Mediasonic and believe I updated the firmware correctly, but I don't see any choice to select Air or Cable. Can anyone tell me what screen this should be on?
There should be a "Signal Type" option under the Channel Search menu, just above "Modulation."
If it's not there, either your firmware update didn't "take" or the updated firmware isn't QAM enabled. You can check your firmware version with the "Information" option under the System menu. The SW version should contain "QAM."
This is why always using mod16 is a good idea. Not all hardware players understand H.264's autocropping convention.
Confirmed! With modulus set to 16, Knight Rider crops to 544x480 instead of 540x480. 544 is divisible by 16 and the file plays correctly on the Homeworx. Only drawback is the file's slightly larger (since 4 fewer pixels were cropped), but it's still significantly smaller than the original.