I can't really recall football on tv in the 70s/80s other than the FA Cup or World Cup/ Internationals. I know itv did broadcast live games , possibly with Brian Moore?
But in those decades Liverpool/ Forrest/ Villa/Arse/united all used to be in Europe, us too! The point is that these European games were on either BBC or itv, therefore nationwide coverage. After football's rehabilitation in Italia 90, the plans for the PL were accelerated.
There was a huge market for live league games and everyone got a dish. United became their pinups and everyone wanted a piece. Throughout the 90s the rebranded Champion's League remained on terrestrial TV. These fees from games added the saturated sly TV coverage gave united a significant financial advantage.
As the CL was engorged, this began to give fello istree boys liverpool and arsenal lesser advantage. Nouveau riche arrivistes chelsea started to upset the applecart.
However I would argue that since the 90s united and liverpool have exerted a vice like grip on both the FA and Uefa, to the detriment of football. This isn't by accident.
David Gill was chief executive at umbro before joining united. Rick Parry was chief executive of the PL before joining liverpool. Both were instrumental in bringing in FFP, to curb upstart City and their lucrative revenue streams.
Even now Gill's baleful influence extends through Uefa and FIFA. Parry left Uefa by mutual consent, coincidentally when the CAS case was lost, due to Uefa leaking like an incontinent tart.
Parry I think is still involved in the Championship, his is a very powerful voice outside the PL. He was one of the architects of making the PL an unhealthy cartel and I'm sure he and Gill have continued ambition for the European Super League.
We should always be on our guard with these two clubs, and the cunts doing their bidding, entrenching their influence. The fact that united "might" be sanctioned for failing FFP has delicious irony, but I'll believe it when I see it!