Watching Game Center CX series is highly recommended before reading this manga.
I believe TV-Nihon (anime fansub group) subbed some of the earlier season of Game Center CX episodes, you can find them online quite easily.
This goes the other way too, if you seen anyone mention Game Center CX, you should mention this manga to them, they will thank you and like this series very much.
Edited by Hiranomoe, 03 September 2013 - 01:59 PM.