Nice work, Scott! Glad to see you do Reef Encounter, as I just bought it and this has encouraged my wife to play it with me (your Thurn and Taxis episode did the same for that game!).
One point, though: in your sample turn, when you expand the pink coral into the white one, you make a point of mentioning your placement at the top right so that no size-2 coral can grow there and threaten you. You then go on to talk about the other two existing corals on that board as being your only threats, however your pink coral has a size-3 gap to the lower right that is super-ripe for demolishing you, or at least splitting your pink coral in half!
I understand your reluctance to get too deep into strategy, but I think it would have been beneficial to do a little more discussion of how you might try to protect yourself from attack by orange, yellow, or that 3-gap (i.e., ensure coral strengths are in your favor, move your shrimple, etc.).
Another point that would have been useful is the concept of enlarging the coral of someone else in order to get the eaten coral tiles in front of your screen -- you don't have to "own" a coral in order to enlarge it, which isn't immediatley obvious. In the sample turn you use, given the proper cubes and tiles, instead of using your pink coral to eat away at the green player's white coral, you could expand the yellow player's orange coral into the same place, then split it off with a single pink tile (assuming you hadn't already made a cube-and-tile move) and claim a nice size orange coral for yourself in addition to the white tiles you got. Which move you would make it obviously dependent on which cubes and tiles you already have, whether you value a pink coral or an orange coral more, etc.
Anyway, kinda nit-picky on my part, as you did a fantastic job (as usual!) with a very complex game. Thanks again for all your effort and keep up the great work!
I'm hoping that your next episode will be 1960, as I really want that game and an episode from you will do wonders for convincing my wife that we need to get it.

--V.