The Terileptil has turned into a shouting mad thing, the costume is a mix of very good and terrible, it looks very very rubbery, but the gills and eyes look rather good, I think again the whole thing looks seriously too well lit, had it all been more subdued the sets and the Terileptil would have looked better, when it's out in daylight it looks very bad. Roller Disco Android continues to be dreadfully out of place.
Nyssa continues to be the best of the 3 companions, she's the most productive and is a very strong character, the other two fall a little flat here, Adric is rather poor.
It was decided to remove the Sonic screwdriver as it had become the Doctor's magic wand, at least this episode was remembered for that. It does end on a very good cliffhanger, 6/10