NewTek puts out another great tutorial for all us Tricaster users out there! Boy I learned a few things myself. The ability to layer in this program is great, and one of the effects is called "Tracker".
Basically this lets an editor select a color in a video source with the NewTek Tricaster, could be live or not, and key other video / graphics in that spot. The video above shows how to do this with great detail.
AND IT'S EASY!
So the possibilities are endless! Like branding. No more boring still images! Spicing up that stream will always attract new audiences and further your reach. No built in fascia displays.
Hope this helps! Certainly did for me.