Hi John
I do beleive there is satellite connection on the communial arials on La Herrada so you shouldn't need a dish. so with all the arial sockets you have in the property you should be able to set up a system by using them. there are many companies in the area. I haven't got any satellite tv myself so the info about the communal arial is what i have heard from someone else, so it might pay you to check if that is the case.
Steve