Originally Posted by JediTricks
That SJA moment where he says 507 is the SJA canon story you're talking about, and it seems to be the Doctor proverbially pulling Clyde's leg: http://www.youtube.com/watch?v=_9D-2HJMD9s
In any event, the BBC has pretty much scrapped the notion of a 12 regeneration limit. I look forward to celebrating the 100th anniversary Special in 2063. :-)
May the force be with you.