Not what I was expecting....
I plugged the transmitter into my sky HD in my living room and the receiver in my bedroom (the same floor about 50ft apart), with the plan to watch sky in the bedroom. I did receive a signal although the interference visual and audio made viewing unbearable.
I live in a block of apartments, where most people have WIFI and I understand that this can be the cause of bad signal, I did switch my wireless phone and WIFI off and I tried the different settings, but no joy.
I will return the product, will try the phillips, which has received good reviews via this site.