The Impossible Planet
The impossible astronaut
Vincent and the Doctor
The Empty Child
I think it was New Earth, actually, and then I went back and watched Rose afterward.
The Five Doctors, or School Reunion.
Either Planet of the Ood or Fires of Pompeii. Pretty sure it was Planet of the Ood.
I know I watched Seven’s run before it was cancelled but the first episode I actually remember was Nightmare of Eden.
The Eleventh Hour