Primetime television in the 80s was terrible. The endless sitcoms featuring laugh tracks, formulaic plots/casts, and soap operas like dallas, knots landing, falcon crest, etc.
Where things started to change was when HBO decided to start creating their own original content like "The Wire", and a whole new generation of producers and directors ushered in a massive seismic shift in content, unfettered by network censors. Finally, real stories more grounded in reality were on display. The Sopranos, Rome, Deadwood were all masterpieces of TV art. Then other channels started their own original content, even outside of premium channels, such as Breaking Bad came along. Then finally, companies outside of cable TV, like Netflix and amazon provided even more diverse and better TV.
It used to be a running joke that having cable meant having 400 channels of nothing to watch. That is certainly no longer true. We're living in an amazing time for entertainment. While Hollywood is stuck remaking the same movies over and over again, television is where true original story telling is taking place. No one, in the 80s, would have made a show such as "Man in the high castle". In the 80s, Hollywood was at it's peak, giving us so many amazing movies (to me, the real golden age of Hollywood). Now, it's a disgrace.
Television still has it's share of terrible programming (any reality show on history channel) - remember when MTv actually played music videos? But there is more than enough outstanding choices to be able to find quality shows any day of the week.