We still have to see a regular UFC fight on basic cable first. They're not on any basic cable channels. I know what you meant though.
They've had guys go on to win and fight for titles off of UFN and TUF Finales. Franklin-Shamrock, Loiseau-Tanner, Sylvia-Silva. I don't know if they'll ever waste a title fight on free TV when they could sell it on PPV. I guess it'd be cool, doesn't really matter to me as long they have good fights on the TV specials like Leben/Silva coming up, and now Parisyan/Sanchez.