The Sixth Doctor is getting an epic & legitimate regeneration story at last! (Audio release by Big Finish.)

Notes:

Planned for a September 2015 release. See here.

For those of you who don't know, Colin got jolted from the role unfairly and his "regeneration" on TV was faked by Sylvester McCoy in his costume and a blond wig after Baker refused to do one when he was given no fair say of his exit.