David Tenants 10th Doctor adventures were brilliant when they started but with the year off from having a regular series all of the specials were simply not up to scratch.
1. The Next Doctor was simply boring and David Morrissey was wasted.
2. Planet of the dead had Lee Evans and the girl from Eastenders as two badly misscast characters and another weak plot.
3. The waters of Mars simply could have been so much better.
4 and 5 John Simm as The Master flying about and firing energy was to over the top even for the Timelords - and their return in the first episode was the thing to look forward to but sadly they were returned to their prision in time by the Doctor.
The Doctors regeneration was the highlight of the last episode and it was superbly done but it was ruined by R.T.D revisiting the 10th Doctors companions before he changed.
A new Doctor and a new production team should bring the show hopefully back on track for 2010!