Scream of the Shalka was glorious. I mean, at the time it was good just to have something like TV Who, but even with hindsight and a new blockbuster show, it was a valid alternate direction. Even if they probably couldn't have persevered with that as a parallel Doctor, they should at least have learned some lessons as to animation style.
I liked the story of that - it was yer basic alien invasion yarn, but that's all you need when you're introducing a new Doctor, especially when there was so much other stuff to hold the interest (such as him claiming he only came to Earth for the wine, and the gay robot Master locked in the TARDIS).