For what it's worth I spoke with the installer regarding this same issue he was having on the coach. He contacted URC and they had no answer for him other than what I presumed in post 3 here and I believe at least one other time on this forum. The solution for this appication was to swap one of the DTV receivers to a different brand so as to not have conflicting commands...obviously this may not solve your problems with all of the gear you are controlling with so many rf kits. Take the advice given in the posts here and get back to us.