My memories of football start with the Ice Bowl, and the 69 Super Bowl. The 70s made me love football...the characters (coaches as well as players), the raw brutality, the team identities (players spent their entire careers with the same team)...The Steel Curtain, Fearsome Foursome, Purple People Eaters, Doomsday Defense...
It was before players became LLCs, and "recovery" was not done in hyperbaric chambers, but in bars and taverns. In the mid-90's, I was watching a game and a talking head said that, "in today's game, guys like Nitschke and Butkus would come out on 3rd down for an extra DB", and I turned it off, watching sporadically since.
No question the players since then are more dynamic, better athletes (much better with training), but the 70's holds my heart.