Hi guys I have had sky+ for over a year now, with absolutely no problems. Over the last couple of weeks, i've lost Living TV (no hardship), bravo, the music channels, and that is as far as i went to check. If I check the signal, I only get a signal from the bottom one, and the main one says not locked. If I take the lnb cable out of the back, then plug it back in, all is well. Then after a while, they are gone again. Any ideas, or is this a £70 job?