I've got a Thomson DHD4000, which receives Mux D from the Bilsdale transmitter. It updates the 4TV guide every night, no problem. BUT - I bought a Fusion FVRT for my Dad. When I plugged it in to test it, it scanned and picked up all the frequencies/channels EXCEPT Mux D, so no updates, and no multiguide. This makes it fairly useless as a PVR. So, if my Thomson works, but the Fusion doesn't, does that mean that the tuners in the fusion aren't as good? Would a signal booster help?