The Keys of Marinus: | ||
 | ep 1 – | After Susan has borrowed Ian's boots to get back to the TARDIS, the Doctor tells Ian, "And if you'd had your shoes on, my boy, you could have lent her hers". |
| ep 1 – | Just how does Ian get back over the glass beach to the TARDIS without his boots, given that the reason he lent his boots to Susan in the first place was so she wouldn't "cut her feet open on this glass"? |
 | ep 1 – | Play spot-the-stagehand when one of the Voord falls through the hidden panel and the trick wall spins around. |
| ep 1 – | When the Doctor falls into the pyramid, Ian and Barbara start to enter the picture on the right (for the start of the next scene, which is supposedly at a different point on the outside of the building) just before the camera cuts away. |
| ep 1 – | Just after Barbara is taken inside the city, on the next shot (with Ian) you can see Jacqueline Hill dart offstage. |
| ep 1 – | The Voord that tumbles to his death inside the pyramid is obviously just a cardboard cut-out. |
| ep 1 – | Ian goes to a lot of trouble miming to show the extent of the force-field around the TARDIS, but then Susan ruins it all by casually walking in front of him and hence straight through the "barrier". |
| ep 1 – | The travel-dial effect is achieved through a crude masking technique. After the Doctor, Ian and Susan have dematerialised, the shadow of the Doctor's arm is still visible on the part of the screen not masked off. |
| ep 2 – | Barbara is only moments ahead of the Doctor and co. when arriving at Morphoton, but somehow she gets the chance to meet Altos and have a nice chat about fashion before the others arrive. |
| ep 2 – | When Barbara finds Sabetha, she says "You're the girl who put the discs on our foreheads". How does she know? They were all asleep at the time! |
| ep 2 – | At the climax of this episode, despite all her flailing away, Barbara only manages to break one of the jars containing the Morpho brain-creatures. |
| ep 3 – | The camera shakes badly as Ian and the others watch Barbara being taken by the big statue. |
| ep 3 – | Off-stage coughing can be heard as Ian explores the booby-trapped garden. |
| ep 3 – | The micro-key is contained in a jar of a substance which apparently has the chemical formula DE3O2. Unfortunately, there is no element whose chemical symbol is either 'D', 'E' or 'De'!
[And yes, it is supposed to be an Earth-style chemical formula. Earlier, we saw a jar labelled with the formula for ammonium nitrate: NH4NO3. Perhaps 'De' is some undiscovered element of the future?] |
| ep 4 – | The walls of the ice tunnels wobble precariously as Ian uses the big curved block of ice to stop the Ice Soldiers. |
| ep 5 – | The Doctor on the Millennius micro-key: "I can't improve at this very moment... I can't prove at this very moment... that Chesterton didn't hide it in its present location." |
| ep 6 – | At the start of the episode, when the executioner knocks Ian out, Mr. Chesterton can clearly be seen to be wearing a travel-dial on his left wrist — but by the next scene it's gone. |
| ep 6 – | More travel-dial problems: after Ian and the others depart Millennius, their shadows are still visible outside the masked-off black area of the screen, and you can see them slowly move off-stage to the right. The same thing happens a couple of seconds later when the Doctor leaves. |
| ep 6 – | One of the Voord comes into the control chamber, trips on the bottom edge of the door, and stumbles over to Yartek. |