So we recently got a new TV for inside the house and so our old TV has Freeview built in and we are wanting to use it in our garage as there is a plug to plug it in but it says so no signal so we bought a UHF indoor antenna to plug it straight from the TV but the signal was bad and kept dropping so we bought a UHF antenna outdoor, we installed it on the roof of the garage and it didnt work not at all. We have tried auto tuning the channels to see if it would work but still no, do we need a cabel for behind the TV aswell as the antenna outside or is there something we're doing wrong? Please help