As 1972 was the last year that the NFL forbade any local telecasts of home games, the game itself wasn't shown live on Pittsburgh NBC affiliate WIIC-TV (now WPXI), nor was it shown on nearby NBC affiliates WJAC-TV in Johnstown, Pennsylvania, WFMJ-TV in Youngstown, Ohio; WBOY-TV in Clarksburg, West Virginia; and then-NBC affiliate WTRF-TV in Wheeling, West Virginia, all of which are secondary markets to the Steelers—WICU-TV in Erie, Pennsylvania and then-NBC O&O WKYC-TV in Cleveland, Ohio, were the closest stations to air the game (although WIIC-TV showed the game on tape delay the following day). Starting the next year, any home games that sold out 72 hours before kick-off could be televised locally. As the Steelers began their home sell-out streak in 1972, blackouts have never been needed in the
Pittsburgh area.
From what I have read so far you are right in some ways. Many people in the Pittsburgh area couldn’t watch it on tv because of the blackout rule. Some of the articles I have read say they did not broadcast it in the Pittsburgh area. In Canada they typically pickup the NBC feed and broadcast it over a Canadian channel. Especially as it was a playoff game. Now,I am not going to swear I watched it live,but I believe I did,but I was 11 years old,and god knows if I saw a tape or extended highlights. But I would like to thank you for trying to remedy my little boys memory. Why you felt the need to do it truly “ perplexes” me.