There is a gushing river of high quality video content available for streaming; more than fourteen year old me could have hoped for in my wildest dreams.
But it turns out that lots of the time, after a long day at work, or a weekend full of errands, you aren't actually in a sufficiently tuned in and alert state to appreciate high quality drama in a way that does it justice. Often, you are only capable of fully appreciating B-grade fare that doesn't demand your full attention. And, that fare, that is entertaining but not excellent, is no more abundant than it was in the 1980s. Indeed, it might even be a bit more scarce.
On the other hand, there is also a seemingly unlimited supply of really dreadful D-grade fare unmatched in the days when you had to watch TV when TV Guide told you it was available, or on VCR videos chosen with half an hour of family video renting committee deliberation at Blockbuster. The "long tail" is real, and a lot of it is bad.