Yes we have the POE filter. I put it on the input to the 8-way splitter. That is normally where I have been putting them on the recent Tivo installs we have done. I am pretty sure our Tivo rep sent us a diagram of recommended MoCA practices and that considered "kosher".

I may just have cable come look at it. They provide and install MoCA and Tivo. So they should be able to do their thing. I just hate dealing with them.....some of them....most of them...see my other thread. :P