Crazy yet topical

Dr Who was much closer to its best on Sunday night. New Dr's companion Donna Noble was introduced - with Catherine Tate bringing some much needed personality to this role. Previous season's Martha Jones was okay but the character took herself a bit too seriously I thought. The evil supernanny was an excellent concept - and the weaving in of an obesity storyline was nicely crazy and topical at the same time. Best of all was the teaser with Rose Tyler returning very briefly in the final scenes...I can't wait to see how this unfolds over the season.