1) Anyone else having this issue? Here is my setup. I have my cable coax line going to a digital xfinity box(doesn't have any hdmi ports), then another coax to a digital tv tuner(does have hdmi), hdmi to costar, hdmi from costar to tv. Unfortunately, the guide button does nothing. 2) When my cable line (coax) is directly hooked up to my tv, I get the local channels in HD. When hooked up through the setup above, I no longer get those channels. Any advice? Sent from my Galaxy Nexus running XenonHD v8.0!