i have directv with several directv boxes in the house. Still I have a few rooms where I’d like to have directv reception but aren’t used regularly such as spare bedroom and gym. Is there a device that I can connect the hdmi out from a directv box that will then allow me to “sling” the signal over my network to other TVs or is it just too much hassle and I should pay rent for other directv boxes even though they would rarely get used.