I recently saw that a firm proposes using existing natural-gas piping to deliver broadband to homes. I think that's not a new idea - and I recall a story from Popular Electronics or Electronics Illustrated, circa 1957-1960, that showed an antenna farm atop a hill near Port Jervis, NY, and a small CCTV studio for local feeds that modulated microwave, injected into the city gas system, which was tapped at each home.
I can find no hint of that online. Does anyone recall that article or the Port Jervis implementation?
Tom