I have a HWS/Joey, and suffered with OTA woes for some time. Both recordings and live suffered from jerkiness and pixelization when viewed on the Joey. Still on S338 on the HWS.
Just to experiment, I put my WiFi adapter into the Joey, and unplugged the coax. After some configuration, the Joey came online and all of the OTA problems were gone!
The only downside so far is that it takes much longer to change channels with the Joey on WiFi.
EDIT: Never mind. The live OTA is still working fine, but recorded OTA still has the problem...