I've recently bought an LG VCR. I've been able to tune the TV stations in and change them to the correct order, but I've got a problem changing channels sometimes. For example, if I change from, say, BBC1  to ITV1 [3}, I initially get a blue screen with five horizontal bars in the top right-hand corner. But then if I press 3 again, ITV does appear. Tbis can happen with any combination of channels. So, in other words, I'm having to press twice to tune in to a station. So, any ideas as to what's going on. Thanks.