But if the instructions are geared to forking the console-to-TV output, wouldn't those instructions work perfectly to fork the cable-box-to-TV output as well?

But if the instructions are geared to forking the console-to-TV output, wouldn't those instructions work perfectly to fork the cable-box-to-TV output as well? EDIT: The page referred to seems to be http://www.justin.tv/p/video_games http://www.justin.tv/p/video_games (since renamed to "Broadcasting video games") and indeed seems to be cast in terms of video game broadcast, but afaict the instructions would work just fine for broadcast content as well.