It's important to think of the reasons for avoiding tv in order to convince others too. And it's not just about picking up bad characteristics e.g. Behaving badly with parents due to watching teenagers do the same on TV shows. Think about cartoons such as the simpsons, family guy, etc. These cartoons have blasphemous jokes regularly- and yet they're watched regularly by 'Muslims' too who may laugh etc. In fact, I would go so far as to say I grew up with more people who watched these shows than those who didn't. It's not just family guy by the way- I recall children's shows that had such jokes in them, even Disney! It won't be an excuse to say 'I don't let my kids watch family guy, I let them watch x'. Think about the blasphemy in bollywood songs, often played at weddings with imams present! I've attended such functions in the past myself. TV and now the Internet is the medium through which apostasy is brought to the masses. If you want to save your own imaan and the imaan of your family, get rid of it ASAP.