Though Nintendo's first foray into the video game world was licensing the Magnavox Odyssey for distribution in Japan; the first system that they designed was not the legendary Famicom... It was the Nintendo Color TV Game 6.
Released in 1977, this system was similar to the Odyssey in that it was a dedicated system. The system had six games, all variations of table tennis/PONG that were programmed directly into it. The Color TV Game 6 didn't have the ability to swap out cartridges even though the Fairchild Channel F was released the previous year proved that the technology was there. The system was the first in a line of Color TV Games and was minimally successful. There were 5 systems released for the series between 1977 and 1980.
As the series was released only in Japan, the consoles do fetch a bit of money online now; sitting anywhere in the $75 - $150 range. The rare white systems could easily see $100 - $250 and perhaps more if there were enough interested buyers.
