I simply bought a second receiver for the bedroom and stream over ethernet.I use remote stream on the second box.(and further boxes)
I have an expensive vu+ duo2 with 4 tuners as master in the livingroom.The other boxes are connected trough wireless 130 Mb or cat5 cable.They use the tuners from the master .I also do not need to install anything special to share my cards internally.I only have sat cables going to the masterbox.Easy is also that al recordings come on masterbox HDD and can be seen by everybody in the house.For the kitchen I use a wireless HDMI system where I can choose between sat or cable device.There I do not need a decoder.Only the receiver from the HDMI WL.All is working fine,even on HD 1080 p 3D.