re: HDMI over Cat 5 Extender?

I was in a similar situation as you a few years ago and live fairly locally to Monoprice and got all of my equipment through them. I am pretty sure I got PID 8122 and it worked beautifully. You need an HDMI splitter so that you can have the output from your receiver split to your first TV and then to the HDbaseT unit.

Personally, I would go with a powered splitter rather than the passive splitter that you have.

A year or two later, I ended up getting the HDbaseT matrix, PID 10683, I believe, to split the signal to multiple locations.

They had wireless HDMI extenders as well, which work wonderfully over a short distance. However, I don't see them on the website now.

Regarding the IR controller, PID 8122 comes with them. However, if you are right about Dish using RF, you likely won't need them, depending on the distance.