Beginning the End was a BBC documentary on the making of the Doctor Who serial The Time Warrior. It was released on the DVD of The Time Warrior. It focused on the changing face of Doctor Who as many central members of the production crew and Jon Pertwee were leaving. It went on to give the opinions of cast and crew on the production of The Time Warrior.
For the purposes of this list, a "DVD documentary" is one made especially for the Classic Series DVD range. For this reason, things like studio recordings, film trims/inserts and other documentaries featured on DVD releases are not included below.