I do not fault religious Jews who find TV to have a destructive role in a person's soul. Most things on television are terrible. A lot of not modest people, bad language, bad ideology, gossip, etc.
Deciding not to have a TV in one's house is that person's prerogative.
However, unless a person as weak character, tv's and other modern devices help keep people in touch with the modern day world. Living like we are in the dark ages to avoid evil things around us isn't the answer, in my opinion. Being ridiculously sheltered is not the answer. There is a time for everything and the real test in life is how we can overcome bad things that come our way. That's my opinion.