Tvheadend

Fresh installed Wheezy.
Enable TVheadend in GUI
Browser to TVheadend interface.
Select adapter
us_ATSC_center_frequencies_8VSB add Muxes
Q950 compatible tuner on USB powered hub
after scanning 68 muxes, there are no services.
On windows, this Q950 same antenna connection works fine. Im in a strong coverage OTA area in Charlotte NC where I tune ~20 stations.
Spent many hours on 3 different Pi's trying this and that. Never a single service after scanning.
Any suggestion before I shoot myself? I do see other posts with no answers. Does ANYONE have this configuration working?
On one of my Pi's, I show 2 adapters, 0 and 1, even though there is only one adapter attached. Going through the scans of both adapters on that one yielded the same results. Nothing.
Help!

Hardware
Device path:
/dev/dvb/adapter0
Device name:
Auvitek AU8522 QAM/8VSB Frontend
Host connection:
USB (480 Mbit/s)
Frequency range:
54000 kHz - 858000 kHz, in steps of 62 kHz
Status
Currently tuned to:
755,028 kHz
Services:
0
Muxes:
68
Muxes awaiting initial scan:
0
Signal Strength:
0%
Bit Error Rate:
0/s
Uncorrected Bit Errors: