Frustration

I am distributing composite video via intelix baluns.
AVO-SVA2-WP-F
and a
AVO-SVA2-F

When I first hooked everything up, the picture was fine but now it is bearly viewable. It has a scolling line and loses color etc. So I decided to troubleshoot the problem. I thought one or both of the baluns are bad. I have two working ones, so I switched out the baluns. The picture did not change. Then I thought, the wire might be bad, (I ran an extra wire) so I switched wires with the same horrible result.

So I decided to grab another TV (cheap 27 inch sylvania LCD). I hooked up the sylvania LCD to the old balun setup (the one that produced such a horrible picture on the other TV). Perfect Picture no problem. So I bet you are thinking, he has a bad TV. Not so fast.

I go back to the old TV (Sony 32 inch WEGA LCD, not sure on model)and hook it up to the cable box with a short composite cable. Perfect Picture.

I am frustrated and running out of ideas. Does anyone have any ideas??? Have you ever bumped into this kind of issue before??

Thanks in advance for helping a frustrated person out.

It is just weird that one tv seems perfectly fine but the other has a unviewable picture. I there anything that can be done. I know the obvious (get rid of the baluns) but that is not something I really want to do.