by Tattle Taylor at . Comments

The dating scene is tough to break into when your job demands wonky hours and call times at 2 a.m. Maybe that's why so many TV stars date their coworkers.

Hey, it's not like they don't have anything in common, right? 

But things get a little weird when a real life couple doubles as a on-screen couple. To insanely dedicated fandoms, it's hard to tell where art is imitating life and vice versa.

At least for those 'shippers who border on a little too dedicated (you know who you are, Nian fans)! Take a look at 21 famous couples on TV and in life:

Ashton Kutcher and Mila Kunis
The running joke during That 70s Show was that Ashton Kutcher and Mila Kunis should date in real life. Now they're engaged with a baby on the way.

While some of these real life relationships were as short as the seasons in which the on-camera romances took place, others were slightly more successful.

Which are your favorites?