Teletext is REAL! Even in the future-past of 20A7!
There are better sites out there that would give you an accurate description of Teletext. Like I could link you the Wiki right here. We stumbled upon this form of art when doing research on InfoChammel which is Public/Private cable access gone completely insane (In a good way). But a short summary for those who don’t want to go clicking around is Teletext was a graphical and information standard developed in the UK during the 1970s as a means of delivering content and information over the air. It didn’t really take off in America due to too many fights over how the standard of Teletext should be displayed. Read on if you would like to know more.