It's only the idiot box if you ALLOW it to become the idiot box by your viewing habits.
There are a huge number of viable, educational shows on the airways.
It always struck me how a friend's Mother always complained bitterly about the idiot box and extolled reading as the only virtuous activity to enhance one's mind...
Problem is, the ONLY thing she read was romance novels, the crappier the better. I told him that he should get a free 'no nag' on the Drew Carey show for that. :)