I currently have one receiver (722), but I am purchasing a second (211K) for another room. I have two coaxial lines coming off of the dish, but only one of them is routed into the house; the other stops at a bracket on the outside wall. The house was originally wired for cable TV; thus the single line inside.

Is there any way I can feed both receivers from the one incoming line (i.e., split the signal)? I already tried a simple splitter, which failed miserably. Is there a different type of hardware I need, or am I going to have to fish another coax line through the wall?

LMK of any other info I can provide. I'm not sure of the exact type of LNB I have, but it's new - just installed in August.