it seems like each room got it's own decoder.. If it like this, then, it's very easy to setup.. i mean, just one dish, and the coaxial cable from that dish is splitted and goes to every decoder.. (Just like condo/apt that has 1 dish, in which residents are now allowed to install their own dish but only used the provided astro port)
(WTA)How to setting Mutilple Channel TV like Hotel, Astro, Tv1-Tv9, and Personal video