Can I use a combiner to combine the FIOS signal with the OTA antenna connection? I have tried it and only get the cable portion of my TIVO S3 to get a picture. I am using a splitter at the end of the combined cable connecting one to the cable connection and one to the OTA antenna connection on the TIVO. If this isn't the way to do it is there anyway to get it done? Thanks in advance for your help.