Video Overlay

[lirics]

Hey Guys,

Just to clear things up some on this subject...
what you are talking about is something called
"Chroma Keying"

This can be acomplished various ways, as suggested
these are various video mixers (such as Videonics MX PRO)
they will let you key out a certain color (ie: background
color) and replace it with a live video source.

.....also some karaoke players actually will let you
do this (they have an video input and will do
an automatic key and replace the background with a
additional video source)

and at least one more option, there are hardware devices
that will squash or bump up the video souce and
allow you to add a second video source to the bottom
of the screen.

..well I hope that helps answer your question

good luck
Bill