What are the differences in football in the north from 1985 to the modern day?

Resources used:

https://www.youtube.com/watch?v=HrkPhh3yHIk
https://www.youtube.com/watch?v=iVbUoGm4lw0
https://www.youtube.com/watch?v=qo3VjGsBHzg
http://news.bbc.co.uk/sport1/hi/football/teams/m/man_city/7628080.stm
http://www.dailymail.co.uk/sport/football/article-2947293/Premier-League-rights-retained-Sky-BT-Sport-record-5-bn-deal-Sky-s-monopoly-Sunday-games-broken.html-
https://www.youtube.com/watch?v=pO-xVVo7b8s
http://www.bbc.co.uk/sport/football/29614980
http://www.dailymail.co.uk/news/article-2027320/Football-matchday-ticket-prices-soar-1-000-2-decades.html

Copyright:

Sky
ESPN