It’s interesting that the three most watched shows of all time fall into a late 70s-early 80s time frame. Peak ownership of TVs just before the widespread use of home video and cable.
We got our first VCR in 1983, after getting Cablevision the year before. Funny thing is we first used our VCR largely to record movies on HBO, or TV shows. The first videostore in my area was three towns away, and it opened in the second half of ‘84.