[CraigMBecket]

beastytech,

The fact that your antenna works well with your tv does not mean the signal is good enough for MCE, MCE is really choosy about its signal. Download ScanChannelBDA and run it and post your results, it will tell us your signal strength and quality and we may be able to advise you further.
As an aside, in some systems with multiple tuners, some tuners don't seem to pick up anything but when the system is set up using the tuners that work and the system is then hacked, either manually or using the tuner extender application it is found that all work. My system is like this where the DN PCI-E dual hybrid tuner will pick up channels on both tuners, but the two avermedia A777s will not, but after applying the registry hacks, (manually, as I can not get the extender to work), ensuring that the last channel scan is done using the DN tuners, I can record 4 channels simultainiously.

Regards

Craig.