the c1 is a television set developed jointly by sharp corporation and nintendo that features a built-in nintendo entertainment system system (originally famicom). the system was licensed by nintendo and was released in 1983 to japanese markets and 1989 to american markets, and supported until 1989. it was noted for having a clearer picture quality than the original setup requiring a famicom and composite video through an rf modulator connection. this system used the 2c03 ppu which supports native rgb output for the highest quality picture at a cost of some compatibility and color limitations with games. for this reason, screenshots featured in video game magazines of the time were often taken from the c1.