The Faceless Ones. I watched the black and white version with the two existing episodes. (It seems a downright odd thing to do to animate the non-missing episodes as well as the missing ones but there you go).
As often seems to be the case with the classic series the first episode was a cracker. Thereafter, it felt very padded and the plot made no sense to me at all. The "Chameleons" want to use human bodies because their own faces have gone a bit icky? Was that it? Not for the first time, nor the last time, the departure of companions, in this case Ben and Polly, is handled horribly. On the plus side, the performances were all very good and I appreciated the opportunity to see this serial for the first time, albeit part-animated.
Fury from the Deep. I must admit to being hugely disappointed in the animated version. The animation itself seems much cruder and cheaper than previous efforts and I was a little annoyed at the anachronistic (in terms of the show) wanted poster for Delgado's Master. What remains of the actual footage from the episodes looks terrific - really atmospheric and creepy - so that just makes it all the sadder that almost all of the serial seems to be gone for good.