[bcohen5055]

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...

[shaklee3]

They still do. My ota setup gets it just fine