We have a new, HD ready, built in freeview digital tv. We have an arial with no cable on a high roof and a satellite dish which we have connected to the TV. We have a 'no signal' message and no picture, just a fuzzy screen. The satellite dish was here when we moved in and we don't have a contract with Sky. We really just want BBC and ITV etc, Freeview would be nice but not essential (have checked and there is Freeview in this area) Basically we can't watch any TV - help please!