The more I read this the more confused I get. I don’t believe that Comcast delivers any HD content through it’s basic tier. So where are your local HD channels coming from on RG-6 A? RG-6 B is a modulator that has my DTV and Comcast digital box. How are you feeding the output of each converter to 1 modulator? And what is the output channel of this modulator? Now putting all of this aside, wouldn’t every TV be showing the same channel from the DTV or Comcast box?
This is CABL.com posting #208085. Tiny Link: cabl.co/m2in