We have bought a Sony KD-28DL10 U Digital Tv with a matching sony VCR and DVD player. we are having problems recording Digital TV. When we have it on analogue it's fine, we can record no problems. However when we put it onto digital to record the recording goes blank if we turn the Tv off. Is this normal and is there a way to stop this? We also can't change channel if we are recording digital, again, is this normal? Thanks in advance for any help. Eddie.