OK,almost one year later & six months after stopping my DECA/MoCA experiment,I decided to restart the experiment. Back then I had just my HR24,HR23,& HR22,along with a cinema connection kit,hooked up to a green labeled 4-way splitter. My original mistake that I have now learned that was from the green labeled 4-way splitters,I split three of the outlets each with green labeled 2-way splitters. Big mistake,I should have used non-MRV 2-way splitters. Anyway,I took down the green labeled 2-way splitters & disconnected the 3 extra cinema connection kits that I was using to hook up ethernet switches(went back to super long ethernet cables all over the house). Well soon I expanded my DTV receivers from 3 DVR's to 3 DVR's & a H25 & H24 receiver. from the green labeled 4 way splitter I attached 2 green labeled 2 way splitters to accomodate my new HD receivers. Just like with the DECA as MoCA experiment,picture suffered. I didn't get error messages,but the picture quality was degraded. I replaced my 4-way splitter with a green labeled 8 way splitter which gave each receiver & the cinema connection kit each their own dedicated outlet,with 2 outlets remaining on the 8-way terminated.
OK,the conclusion is that I read on another thread that basically you shouldn't follow up a green labeled splitter with another green labeled splitter attached(in reality,I had a non-MRV swm 4-way splitter & non-MRV SWM 2-way splitter,both of which I could have attached to a green labeled 2-way splitter that would have replaced the green labeled 4-way splitter & I wouldn't have had the picture degradation that I had with the original set-up & I wouldn't have needed to order the green labeled 8-way splitter,but I digress). So what I did was order 3 new non-MRV SWM 2-way splitters. After they came in,& avoiding splitting the signal to my 3 DVR's(because they already have a built in 2-way splitter for each tuner,& one is hooked up to the same line that my SWM power adapter is hooked up to),I assigned each splitter to split the signal for my 2 HD receivers & cinema connection kit.
After my set up was completed & ethernet switch hooked up to my 3 extra cinema connection kits dedicated to such,I can proudly say that I have no picture degradation to my HD receivers. I am posting this message on my computer hooked up to the switch hooked up to my router via DECA & the dedicated CCK also hooked up to it.