First- through early fifth-generation video game consoles commonly used this method to connect to the television, which was used as the audio and video device for the game, with some variations (the Atari 2600, for example, used a Channel 2/3 output switch). In many cases, an RF modulator was used to take the composite output from the game and modulate it before sending the signal to the television. Late fifth- through current eighth-generation video game consoles retain the ability to output through RF modulators, usually through a separately purchased adapter. Recently, some RF demodulators have been marketed on obscure online markets to allow channel 3 inputs from legacy devices to work on RCA composite in.