On Screen Display Overlay of Arduino sensor values

Hi all, I have been searching the web for quiet some time and can't find an off the shelf small board/ shield so that I can use an arduino to overlay sensor values onto video from a FPV camera. I believe I can handle the project with the TV OUT library but merely can't find a good starting point on the hardware side of things. Any schematics or leads would be greatly appreciated. Thank you for your time.

I very much doubt that the "TV out" library provides in any manner for video overlay. :astonished: