All the time :)

Indeed, I say it all the time. :D

Okey Dokey = OK. Someone just trying to be cute.

I think so because things on TV probably is from the reality. I heard it all the time from "Hannah Montana" It's just the same with "okay" You know, it's like "see u later, alligator" Dokey and alligator are using for rhyme

Yep, I use it too. :) It also turns up in Slovak and Czech, with the same meaning of course, as "ouki douki".