Color TV Game (カラー テレビゲーム Karā Terebi Gēmu) is a series of home dedicated consoles created by Nintendo. There were five different consoles in the series, all developed and released in Japan. In 1978, Nintendo released the Color TV Game 15 (カラーテレビゲーム15 Karā Terebi Gēmu Jū Go).
Pong (marketed as PONG) is one of the earliest arcade video games; it is a tennis sports game featuring simple two-dimensional graphics. Many of the companies that produced their own versions of Pong eventually became well-known within the industry. Nintendo entered the video game market with clones of Home Pong.
Nintendo began to produce its own hardware in 1977, with the Color TV Game home video game consoles. Four versions of these consoles were produced, each including variations of a single game (for example, Color TV Game 6 featured six versions of Light Tennis).