Good is a relative term. Each person is going to have a different opinion of what good TV is for them. Personally, I do not enjoy the direction TV shows are moving in. I do not like the reality show format. Most new shows seem to be in this format. For instance, I found a new show about fish tanks that I thought I would enjoy. As it turns out, the show spent most of its time following the people who build the fish tanks and only briefly talked about the tank itself. I didn't really care that the fish tank builder was having a fight with his wife, I wanted to see the tanks. Of course, there are still good shows on TV, but I can no longer turn on the TV and find something to watch any time I want.
There are some good shows on telvision. Like so many mediums of such breadth, it's probably innaccurate to say that there ever was a golden era of television or a time when things were better on the whole. My favorite shows are not on any longer, but there will be new favorites to come...if I can find the right channel.
Today's television situation is more spread out than it used to be. Now there are dozens and dozens of stations and the good programs and series are spread out across all of them. Thirty years ago, this wasn't true and the quality shows were concentrated on far fewer stations.
I'm a big fan of the old fashioned situation comedy--"sit-com"--and, sadly, they do not seem to be as popular as in the past. There are fewer sit-coms on TV today than ever before, and the quality of most of them are inferior to their predecessors.
Like any endeavor, the results fall along a bell curve -- there are exceptionally good and horrible examples on either end, and a vast number of examples in the middle. The sheer increase in numbers of TV series due to technological changes has added examples to all three categories. If by "good" you mean "quality," and understanding that "quality" is subjective, there are more "good" series than in the past, but there are also more "bad" and "middling" series as well.
I'm showing my age, because I think that they have become too "dirty." This is pretty funny, because I am not in any way a prude. But when you have things that are allegedly sit-coms telling jokes about taking pictures of your genitals and sending them to women or which has a man and a woman performing (obviously not on camera) a sex act while he drives a car and her mother is asleep in the back seat, things have gone too far.
Due to the explosion of TV series across the globe, your question becomes as difficult as deciding how 'good' fiction books are. I think you need to define 'good' much more precisely for an evaluation. Do you mean popular? Entertaining? Thought -provoking? Sensational? Profitable? Morally appropriate?
Television is an essentially popular medium of mass communication, and therefore it is necessary to evaluate “goodness” in a manner different from how one might look at poetry or plays.
The major change in TV has been the shift from dominance of a few networks to the proliferation of cable and internet forms of delivery, and thus wider range of channels. This means that the audience is more diffuse, and rather than there being merely a limited number of blockbusters, there is a far greater variety of shows, appealing to more segmented audiences than there were in the 1950s-1990s.
Public television produces many well-made and entertaining series appealing to a fairly sophisticated audience. In commercial television, stereotyping by race, gender, and sexual orientation has become less common, and many series like “Little Mosque on the Prairie” appeal to the diverse audiences of today’s culture.
Overall, one can say that contemporary TV does a good job of satisfying its audience’s entertainment needs.
How good it is depends upon your view of "good". Are you thinking good educationally, entertaining, well made, well written? This is a difficult question to answer, it depends on what area you are talking about and who the audience is.
I dont thing the tv serials are making good to the people. They were
showing how to hate people, how to make cunning things on each others, how to do murders, any things we can see in recent serials. And in some serials the actors keeps on crying on the whole episode itself. It was quite disgusting...