Sorry but you have a very rosy view of the 1970s. Would you drink this water [0]? Or fill your car with leaded Gas [1]? Use asbestos in your building [2]? DDT on your fresh food? [3] Air quality around the world is vastly superior to the 70s (people are still suffering because of it [4]).
> than a 4k lcd tv that plays Lady gaga or Justine beiber or what ever crap that is "trending" today.
It's your choice. Your 4k TV today can still play Abba or boney M, and many other bands you couldn't afford. A record cost $3 in 1970, which adjusted for inflation is about $19. For the same (adjusted) cost as an album a month in 1970 you can have access to basically every artist from the 70s (Spotify) along with most TV shows (nrtflix/) and still have enough change for a beer to go with it. Nobody is forcing you to leave your TV tuned into listen to Bieber. There was also a deluge of crap in the 1970s that you just weren't exposed to. There is also plenty of great music being produced now that can easily be found.
[0] https://www.flickr.com/photos/usnationalarchives/3769068219/... [1] https://en.m.wikipedia.org/wiki/Tetraethyllead [2] https://en.m.wikipedia.org/wiki/Asbestosis [3] https://en.m.wikipedia.org/wiki/DDT [4] https://www.newscientist.com/article/2076728-people-today-ar...