Last summer, I posted an excerpt from a 1970 Lillian Ross New Yorker piece about that year’s Consumer Electronics Show in which she introduced the magazine’s readers to the first home-video system, Cartrivision. While its makers (including CBS legend Frank Stanton) knew it was a disruptive technology, they were never able to sell it with its relatively high cost ($1,895). Here’s a What’s My Line? episode in which the system is demonstrated by company spokesperson Art Rosenblatt in 1972, the year the system came to the market and the one before it was pulled.