Got my new Roamio basic hooked up yesterday, and all of my channels are coming in great OTA. Tonight, however, a V52 error situation has cropped up. As soon as our recordings started, the 4th Tuner (Tuner 0) threw up the V52 error. Stopped the recordings, reset the box, and started digging through some things. I paused the show I was watching, then switched tuners to pull in another station. Everything was fine. Hit "Live TV" again and picked a 3rd channel, still fine. Sure enough, though, as soon as I went to the 4th tuner...BOOM a V52 error. Diagnostics consistently shows that no matter what order I go in, it always ends up being "Tuner 0" showing no signal at all. Is this a case of the internal splitter degrading my OTA signal to the point that the 4th tuner cannot pull in the picture, or will I be returning this unit?