Character Transfer To Next Realm

Hello, I want to know something really important. I'm trying to make something like a gameplay video about my character in WoW TBC, and I was wondering, can I transfer him later in the other realm?
Like, when I finish most of the TBC content, can I transfer it to WOTLK realm to continue my adventure there?
Because I really wanted to make this like an video gameplay through history.

You can't transfer a character from TBC to wotlk. You will have to make new character if you want to continue on wotlk.