The "Bonanza" look
 

I'm trying to re-create the effect that started every series of Bonanza. You remember the one where the center of the map burns out and reveals video behind it?

I've got the shots I need but don't understand the matte process well enough to make it work.

Any suggestions on how to make this work?

THANKS

I've moved your question to our open forum since you will more
likely get answers here.

To everyone: Rob posted this in the Premiere forum, so he is
probably using that...