The one setup I had using TV out was at an investors club. The use was to keep up with various stocks on a big screen that could be seen by everyone. That setup went directly from video card to the TV. Once the driver was loaded, we never had a problem with it.

Try to bypass the VCR and see if that works. If it does then the issue may be the VCR setup instead of the video card.

Don't worry about the Y-PbPr information. Many new TVs have these jacks. Mine does. The manual states that they can be used for connecting equipment with this capability such as a DVD player or Set Top Box. I have never tried.