I was told at the store that I would not need an RF adaptor to attach a DVD to my 16-year-old TV if I bought a combo VCR/DVD player instead of a DVD only player. I can use the player as promised, but the picture is very poor quality (wavy light patterns flutter and wobble through picture). Do I still need the RF adaptor to fix this or is this as good as DVD gets on old TVs? Also, my broadcast reception, which I ran through the player to my antennae, is awful now, but if I run straight to the antennae, I can't record on the VCR. Anyway to fix that?