There is no interface with the Eyetv to the Dish receiver that would permit channels to return. Your Eyetv is only as good as the channel the reciever is set to. In other words, your Eyetv will retrieve any channels that are not regulated by a reciever to interpolate them, ie: "Over the air" and/or a "straight cable connection" without a set top box. Whether it be a Dish network or a local cable company, any circumstance of a set top box will not be compatible with Eyetv for the lack of it's abilty to change the channels on that box. The only circumstance I have ever seen is when a viewing/recording device has an IR blaster that transmits the channel selection to that set top box and changes the channels much the same as you would with a remote. That being said, there is still the issue of that particular device knowing the IR codes to your particular box.
Your Eyetv is good for "Over the Air" and/or a straight Cable coax connection only. Sorry.
Mac Mini Mac OS X (10.4.8)
Mac Mini Mac OS X (10.4.8)