Is there a way to split the OTA signal from the roof top antenna (Winegard Sensar II VM2NPS) so that the TV can tune in the subchannels in HD/SD without going through the VOOM STB? My installer could not figure out a way to bypass the diplexer. I am trying to utilize the direct tuning of the Sony Plasma KDE42XS955 and the dual picture modes. Any insight would be appreciated. Thanks!