Colony in Space - Episode 5

Just before starting this episode, caught a glimpse of Ninth Doctor Christopher Eccleston in "The Others". OK, back to Pertwee. So, the colonists are in charge, no wait, now IMC are in charge, no, now it's the colonists again... yawn. Another gunfight at the dome entrance. Yawn. Even Delgado seems to be going through the motions here. Y'know, considering the novelization of this story was titled "The Doomsday Weapon", there's precious little mention of it here. It was only mentioned in the scene with the Time Lords at the very beginning of Episode 1, and that's it. We'll hear of it again soon, I'm thinking. And the Primitive city entrance was originally on film, now it's in studio. Hmm. We also get a silly cliffhanger, with the Master about to destroy Jo, his finger moving ever...so...slowly...towards...the...button...as...the...end...credits...music...starts...