I just installed a 612 in my basement on a shelf above my 722, I used a splitter to split the OTA signal, the issue is on my 612, one of my UHF stations(8.1) has a good signal then after a couple of seconds the signal drops out totally. The 722 does not have this issue, so I undid the splitter and hooked the OTA directly into the 612 and I still have the same problem. I tried soft and hard reboots and the problem is still there. I remember when they did the switch (digital transition) that I had the rescan my locals several times to get them all. Am Im just not being patient enough or is the 722 tuner that much better. I also have a 622 and 722k and neither of them have this issue. Any ideas?