I now this can probably be a million and one different things, but just in case i'm missing something obvious. my family are of the belief that the tv is one of the most important items needed when living in a motorhome. Last weekend we stayed at a site with tv hookup on each pitch, great? no! our techwood tv with built in freeview searched for channels, found channels, each will be good for about 20 secs then freeze, then blue screen, then 30 secs later will come back on, then repeat the same. Spoke to another motorhomer who suggested a booster, bought one, tried it, made no difference. Signal strength shows good, tried it in different arial sockets and it made no difference. I can play dvd's on the tv and the pictures fine. Any suggestions would be gratefully received, apart from "bin the t.v" cheers.