If you look at the diagrams for the devices linked you see that there is still a source, the sat box in this case, feeding all of the monitors that are linked together by the RG-6 cables. What this does is allow you to send the same picture you are watching in the family room to monitors in other parts of the house, probably over the cable in the walls of your house. However, in this configuration, everyone is limited to watching the same channel. That's fine if that is what you want.
That is not going to work on the input to a sat box, if this is what you're contemplating. There are DC currents in the line between the dish and the transceivers in the sat box, at different voltage levels on DTv boxes, that are used to select which channel is viewed. Also, the receiving end must have a transceiver to "talk" with the satellite, and decoders to handle the format that the content is broadcast is transmitted in. I haven't kept up with Dish, but DTv is mpeg 4, IIRC. Your monitor, or tv, would still need to have a way to work with the dish.
That is not going to work on the input to a sat box, if this is what you're contemplating. There are DC currents in the line between the dish and the transceivers in the sat box, at different voltage levels on DTv boxes, that are used to select which channel is viewed. Also, the receiving end must have a transceiver to "talk" with the satellite, and decoders to handle the format that the content is broadcast is transmitted in. I haven't kept up with Dish, but DTv is mpeg 4, IIRC. Your monitor, or tv, would still need to have a way to work with the dish.