When it comes to sitcoms and their theme songs, there are a few different categories. First are those that debut with the perfect theme song and never change it — shows like Cheers, The Jeffersons and ...

Get ready to hum along! Join us as we count down our picks for the catchiest and most enduring theme songs to ever hit the ...

Add Yahoo as a preferred source to see more of our stories on Google. But there is one more category: The shows that never seem to make up their mind about what their theme song is. Every few seasons, ...