hello. the last few days / week - my TV3 recordings have been quite bad with bad signal reception. I'm in aucklands north shore. - i have powered down/up, - i have re-scanned my channels etc. TV1, TV2, Prime, CHOICE etc all come up fine & can record. but when i record and WATCH (live) on TV3 (or TV3+1) - there are few symptoms. - i have or may not have sound. - The picture 'freezes' with lots of different colours at the top of the screen Are other people having probs with TV3 ? is there a way I can rescan / verify / proof-scan a single channel instead of scanning all channels ? to check the quality ?