Only for the "Out-of-town" scoreboard in Left Field and this was actually my choice. The other scoreboards were started by a California division of the company I was working for at the time. They used computers made by Computer Automation. The California group got in over their heads at the Stadium (and also the Montreal Olympics) and my group was directed by Corporate Hdqrs to take over. In fact I'm pretty sure that "Out-of-town" scoreboard was a "gift" to the Yankees to sort of salve the wounds caused by all the early problems with the other scoreboards. It definitely wasn't part of the original plan of the Stadium remake of the mid 70s.
ML/NJ
One of the great traditions of the "middle" stadium (1976-2009) -- and maybe even in the new one -- was the arrangement of pennant flags for all the American League teams on flag poles along the facade above the outfield bleachers. On game days the flags were arranged in the order of the American League standings that day. I once had the unusual experience in the 1980s of watching the stadium staff re-arrange several of the flags between games of a doubleheader -- when the American League Eastern Division standings were changed after the result of the first game.