Fairchild Channel F
The Fairchild Channel F is the home video game console that has the distinction of being the first programmable ROM cartridge–based video game console, and the first console to use a microprocessor. It was launched as the Video Entertainment System, or VES, but when Atari released their VCS the next year, Fairchild renamed its machine. It was released on November 1st 1976 for $169.95, which would equate to $734.14 today.
The Fairchild Channel F was released sometime in November of 1976, but an exact day could not be found.
November 1st, 1976 Source: racketboy.com
Two Pong clones, called Tennis and Hockey, were built into the console and could be played without a cartridge.