I am just now setting this unit up to record OTA shows.
A good quality TV antenna is routed into the HW130STB and out to my TV, and I get perfect reception on the TV for all channels.
When I set my TV to channel 3, turn on the HW130STB (using that as a tuner) and set it to 12-2, the image is pixilated.
The signal gets from the HW130STB out the 3 RCA cords, which go through an A/B switch, then into an HDMI converter, from there to my second HDMI input on my TV.
Have only taken a brief look at other channels when tuned through the HW130STB and those looked okay.