Opinions on watching t.v?

Mr

As parents how you you feel about your children watching TV? Do you let them? If you don't then why not? I'm just curious as to what other opinions are. I let my 16 month old watch some t.v everyday, but no more than a couple hours. I babysit two kids who are 5 and 7, and their parents act like t.v is the devil. LOL! poor kids can only watch a movie on Friday's. what do you do? Are you ok with your kids watching TV? I'm not here to judge if you do or don't. I'm just curious.