There is a system for TV Meta Data to be sent over the air and TVs with tuners used to be able to read this data and create an on screen guide. I had this on on

There is a system for TV Meta Data to be sent over the air and TVs with tuners used to be able to read this data and create an on screen guide. I had this on one of the first HDTVs I got but haven't seen it since https://en.wikipedia.org/wiki/Program_and_System_Information_Protocol https://en.wikipedia.org/wiki/Program_and_System_Information...