Spearhead from Space - Episode 3

OK, I know for a fact that the Auton menacing the skinny guy did *not* reveal his wrist-gun before the end of last episode, in fact he walked *farther* than where it opens in the recap at the beginning of this episode. Oh, well. Skinny guy escapes, but is eventually killed, in a rather cool way. Jon Pertwee is totally at ease as the Doctor, his first story does not make him "over-Doctor" like some later first stories have the actor do. Thank goodness. Would a scientist wear as short a skirt as Liz does? Hmmm. Iffy cliffhanger again, with General Scobie seeing his duplicate on his doorstep.