msycamore said:

Another thing, in the broadcast, the channel logo appears in the corner of the frame five or six times, I don't remember exactly, the first appearence is in the black border so that one is easy to mask out, but the other instances we will have to live with, as it was broadcasted in pan & scan.

You could always try to splice in fullscreen footage from another source to get rid of them, but I don't think the logo is that disturbing. Thoughts?

There are several logo-removing filters for VirtualDub that might be worth trying, depending on what is behind it. I've used them on occasion.