I haven't watched Turn Left in a while but the music from that is so much of what makes that episode along with the brilliance and sacrifice of Donna Noble. Is it any wonder that aside from Rose, Donna has to be the most favoured companion. More than a match for the Doctor and a true friend.

I'm really glad that Catherine Tate and David Tennant are continuing to work together on other projects. How wonderful to be able to work with a really good friend.