You could ask Silicon Dust, but I fear you'd get similar customer service. I can tell you that my Roku works with my HDHomerun Quatro... um... poorly. I don't consider it usable that way, but I pretty much never watch anything live anyway. I haven't seen it not display a channel, but it almost always stops after a few minutes. I would guess that whatever format the non-working channels are using isn't compatible with Roku, but I didn't think that was possible with what's currently available OTA. Does it give any kind of error message? Can you record the raw video and compare the format and codecs used with a channel that does work?
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