What is Your Choice for the Best TV Theme Song Ever?

Over the course of TV's history there have been many iconic TV theme songs.  

'The Andy Griffith Show's' theme song is one such example. I found myself whistling it while I was writing this. 'The Big Bang Theory's' theme is a recent catchy one.' Johnny Carson's 'Tonight Show' is another.

Last Sunday's Parade Magazine offered the question of "What is the best TV theme song ever?" It's a tough question simply because there are so many to choose from.

One of my favorites was the theme to 'Hill Street Blues.' I loved that theme and show. So what is your choice?