Coleus Gone Wild

I have found a plant that I can keep alive on our shady front porch.  In fact, they are not only alive, they are thriving.

They are different coleus varieties and I am in love.

Aren't they beautiful?

Unfortunately, they won't survive the winter outside here in Tennessee.  They like it warm.  So, I'm going to move them inside when it gets colder and hopefully I can enjoy their beauty a little bit longer.

Has anyone else tried to move any coleus inside?  How long did they survive?