This has been a great little tv for us too.
My daughter has the same model tv, but we have no maunal at all.
Was trying to find a pdf on line but to no avail :(
Sorry I cant help you, but I also have a problem. She recently moved to pittsburgh and the channels we programed were for our area.
She does not have cable there, so I tried programming some new channels.
I used the function button, cable or air, but the up and down arrows only switch me between cable and antenna. I can not search for new channels to add.
Either I have forgotten how to add channels or the feature is no longer working.
Can someone help?
The model is JVC AV-20CM6