Rewatched the "Master trilogy" from seasons 18 and 19... and its really a trilogy in name only. Honestly, Bidmead did a pretty bad job resolving any issues from Logopolis with Castrovalva, which he absolutely should've since the former story was absolutely vague on how the Fourth Doctor even actually saved the universe there, least of all from the Master. Honestly, Logopolis does follow on from Keeper of Traken, but also absolutely references all previous stories in the season, save for Leisure Hive. It references the CVE that the Doctor stepped into to get to the E-Space, the Time Lords wanting the Doctor to come back to Gallifrey from Meglos, and of course continues directly from Traken, so its really more like a proper season finale than the middle chapter of an ongoing Master storyline. I blame Bidmead on this, but that'd be unfair, as it seemed obvious that he can't write decent characterization if his life depended on it.
Anyway, some quick thoughts on them... The Keeper of Traken is the most consistent of the bunch, with a solid story and well-defined characters. Its a bit long, as most four-part adventures always are, but its a good Master story, and for once, the Doctor doesn't know that its him, amazingly enough. And while he's not the most popular Master, I have to say that Geoffrey Beevers is still the best iteration of the Master after Delgado, even in his sole TV appearence (he's made tons of BF audios as him, of course, but even without them, I'd prefer him over Peter Pratt, and most of Ainley, Simm and Gomez). I guess its the voice, really.
Logopolis I enjoyed more this second time around, though the usual stupid stuff will always be stupid - why would the Doctor think drowning the TARDIS would be such a fantastic idea? - and I maintain Ainley's Master is at his best here, certainly during the Peter Davison era - but to me, it completely falls apart in the fourth episode. I mean, OK, I can "explain" away the total lack of grief (as Philip Sandifer accurately put it) in Tegan's action in episode 3, but by the fourth episode, something's gotta give. The lack of actual visible resolution to the mess the Master had created bugs me too. Of course, its clear Bidmead's concept is too big to be pulled off visually (that's why they don't even try it, save for showing Traken's total destruction), and thus they fail to showcase the actual impact of the Master's action, and well as the effect of implementing the Monitor's final calculations into effect and actually, then, showing that the Doctor and the Master saved the universe. Its all just a bunch of boring technobabble that doens't relate to anything, thus proving Bidmead's "hard science" thesis on his tenure of the show to be total bull. Furthermore, what did the Master try to achieve with holding the universe in ransom? How supremely idiotic was that? And how did the Doctor stop him, by pulling off that big cable? And why did, in fact, the Doctor fall down to his death? He didn't look to be in peril. It felt like he just let go.
Sandifer also makes an absolutely crystal-clear point about this story, this regeneration story, and indeed the whole of J.N.T.'s tenture.The fact that its just collage of images and not, actually, evocative of the stories that Baker did. Its not evocative, then, of the Fourth's era, but more of a precursor for the Fifth. Which is fine, but it robs of the Fourth Doctor of his emotional triumph over the Master, his victory and sense of relief of having saved billions of lives in the process. Its a sad occassion then, that Tom Baker departs in. Whereas Planet of Spiders was designed as Jon Pertwee's farewell, this was designed as a booting off of Tom Baker.
Still, I guess I enjoyed the concept of the story more this time around. And I liked the idea of the Doctor having to contend with his future, even if it means regenerating into it (its pretty clear he knows the end is coming). Baker's wonderfully moody throughout this, and sells it well, making his last scene solely because of him. Its always to see this Doctor go.
Of course, the whole Pharos Project storyline, as well as the actual questions raised above (what did the Doctor and the Master just do to prevent the universe from falling into further entropy) are never answered in Castrovalva. Instead, we get a story with two episodes of the Doctor wandering around aimlessly and hopeless, an episode where the Doctor is mostly asleep, and an episode where the Doctor almost there, but not really. Meanwhile, Nyssa and Tegan are mostly completely pointless to the story, and Adric is seemingly SO smart that his mind can help the Master create an entire, fantastical facility like Castrovalva, include it magically in the TARDIS data banks and also preprogram the TARDIS to go there, but first to Event One (wait, WHAT?!).
Needless to say, I never enjoyed Castrovalva, and needless to say, I don't think I ever will. While it is, concept-wise, quite above Tom Baker's Robot (which was just a clumsy King Kong pastiche), it is however ineptly written, and awkwardly realized (some nice scenery shooting, but that's it). The characterization is truly all over the place (again going back to Sandifer's remark about "total lack of grief" from both Nyssa and Tegan), and there's also a real lack of reaction to the fact that the larger-than-life Tom Baker morphed into meek-as-they-come Peter Davison.
TO be honest, though, I'd have to say that I greatly enjoyed Davison's performance this time. He has a task as difficult as the Doctors before him, to replace a largely succesful Doctor and make the part his own. Maybe even moreso, considering the longevity of Tom Baker's run. Anyway, while I disagree with their approach, as they decidedly make the Doctor more timid and weaker than any other Doctor before him (even Pertwee's Doctor wasn't this problematic in his regeneration story), nevertheless, he carries his scenes with class and effortlessness that is admirable. I don't think either Colin Baker or Sylvester McCoy could've carried these scenes better (in fact, in McCoy's case, I'm sure it wouldn't have worked at all). But beyond that, the story's a pretty inept start for the Fifrth Doctor, and I didn't enjoy it, almost at all.
Wow, I've rambled quite a bit, haven't I?