I've got my EH55 connected to my system using a Y splitter that feeds a digital STB and also feeds the RF connection to my EH55 so that it can utilize the tuner that is built in for TVGOS and channel tuning. I've had a few problems since originally connecting this piece up with my system. First, the TVGOS programming downloaded partially the first time, as of this morning it seems to be corrected. Also, I am experiencing the a blue screen on channels 2, 4 & 5 which are CBS,NBC, & Fox in the NYC Metro market where I live. I am using COMCAST as a cable provider and all of the other channels do appear, albeit a little grainy on certain channels but overall I can at least see them. When I switch my Pre-Amp back to the Digital STB, the channels are crystal clear as opposed to the analog tuner from the PANNY. Assuming the Y splitter I am using isn't defective (& I've tried switching leads between the two units to see if either end would produce a stronger signal so as to receive the 3 channels) what possible other problems could be causing my symptoms. Does one experience signal degradation when you start splitting the coax. cable? What are some viable solutions I could try to correct my problem? Thanks for anyone's help!