Everything is not bad and also is not good. There's the same view of me for tv shows. It's your decision what you should watch or not. How could we bleam tv shows for good or bad because this is totally in our hand to decide our choice. Yes there definitely some shows which are unnecessary. Everything thing needs limit so if we can understand our limit there will be no problem. And tv shows not only for entertainment but there's also informational , sports , lifestyle and so many options. So you have to decide your choice.