I remember them, they were the one of the first on-screen channel displays (THE first?). My grandmother had a 19", which sat atop her massive 25" Magnovox color TV/combo circa '68.
Now all you need to find is an old "Odyssey" game console. Does anyone remeber these?
http://www.total.net/~hrothgar/museum/Odyssey/
http://www.geocities.com/~compcloset...voxOdyssey.htm
You gotta figure that the on-screen display came from Odyssey technology (1972!)