Broadband broken by old TV (say BT)...

[ppppenguin]

I'm trying to find an articleI remember where one of the great digital designers, possibly Bob Pease or Jim WIlliams, said something like "all digital signals are analogue signals". In the meantime this article by Bob Pease is well worth reading:
https://www.electronicdesign.com/technol...uff-anyhow