Been awhile since I last posted on this, but things aren't any better. I had to quit using the Windows machine, it seems to have it's own issues. Nothing to do with Channels. It's just too old and wearing out I guess.
Anyway, running Channels on my MAC still has occasional issues with the jump forward and no rewind on recordings. In addition, commercial skipping rarely works. Most of the time I have to manually fast forward thru them.
I'm not entirely sure where the problem is. I have tried recording directly with my HDHomerun unit. Those recordings are a mess. A lot of breaks and freezing. Using that to watch programs directly, not thru Channels, it has an issue with video and sound getting out of sync. My point of this is, maybe the problem is in that unit and not Channels. Would welcome anyone's thoughts on that.