I have the cable split, one side going directly into TV and the other going to cable box then using DVI to HDMI on TV. My scan was done on the "direct to TV" split, so I'm not using the cable box to locate the subchannels. To be clearer, when I view the direct to TV input my channels 2,4,6, work fine but the subchannels eg..82-1 90-4 have no audio. No cable box involved. It is happening right now. As I was flipping through the stations when I first scanned, the audio was there, then about 10 minutes later - no audio.