Alternative Character Interpretation: Jeeves can become quite sinister when you look at him a certain way. He manipulates Bertie to be dependent on him and passive-aggressively forces him to live in a way that keeps Jeeves employed — although in the end, he always reveals to Bertie what he's done, and not only does Bertie not mind, he's happier hanging out with Jeeves than with any other character.
By a similar token, Bertie's Upper-Class Twit tendencies often seem to be little more than a front; he's not nearly as stupid as he likes to pretend, just too lazy to think things through. If he were really stupid, he'd fire Jeeves for constantly defying his every last whim, whereas the overall dramatic arc of every Jeeves & Wooster story consists of Bertie at first forgetting and then remembering that Jeeves is better at defending Bertie's best interests than Bertie himself is.
Ear Worm: The theme. It doesn't help that it's used as the basis for the entire score. Or that it perfectly suits the tone of the show.
Fandom Berserk Button: Jeeves is not a butler. He is a valet (or a gentleman's gentleman). There is a difference. Woe betide you if a fan hears you refer to him as such...or, worse, as a chauffeur. And in British English, the t in valet is not silent - so VA-llut, not valéy.
Although now that we're clear on that subject, if the need for a butler does arise, Jeeves can "buttle with the best of them.")
"Funny Aneurysm" Moment: One of the characters, Roderick Spode, was a satirical No Celebrities Were Harmed take on a pre-World War II British Fascist politician. Wodehouse could not have imagined the way another fascist government would affect his life. Prior to World War II, Wodehouse had moved to France. In the German invasion, Wodehouse was captured and coerced into participating in several German propaganda broadcasts. As a result of the scandal that followed, Wodehouse would never again set foot in the country of his birth to the day he died.
Bertie describes himself as a 'Nature's bachelor', and seems to get very upset when he has a tiff with Jeeves. There are also the 'tender glances' and comparisions between Jeeves and the wives and sweethearts of Bertie's friends. Jeeves, on the other hand, practically goes ballistic (by his own inhibited standards) if Bertie ever gets engaged and goes to great lengths to keep his master unmarried. Of course, he is stated to have a strict policy of never working for married men. It's up to the reader which way to take this, as it's probably unintentional. (To some people, Bertie gets entirely too upset for an employer when Jeeves gives him the cold-shoulder.)
Jeeves certainly seems pretty upset when Bertie wears clothing he dislikes. There's an instance in one of the stories where Bertie makes up with Jeeves after some disagreement over clothing, and then he says that he feels like a hero in a story who made up with his wife after a quarrel.
There are those that have considered "Thank You, Jeeves" a break-up, make-up story when Jeeves leaves Bertie's employ due to Bertie's new habit of playing a banjolele. After much chaos involving black-face, Bertie's new valet being a thief and setting fire to Bertie's cottage (which destroys the banjolele), and engagement confusion, they get back together.
The two greatest Ho Yay Jeeves stories are considered to be in "The Aunt and the Sluggard" and "Bertie Changes His Mind" (both from the book "Carry On, Jeeves"). In the former, Bertie is forced out of his own apartment and has to stay alone at a hotel, prompting several pages of him angsting about how miserable his is without Jeeves. The latter is the only story in the canon narrated by Jeeves. Many a troper's suspicions were confirmed when Jeeves refers to his and Bertie's situation as "our cozy bachelor establishment."
Personally, this troper finds the most Ho Yay instance in the Jeeves & Wooster stories to be the end of 'Jeeves and the Tie That Binds', where Jeeves destroys all the pages in the Junior Ganymede's book he's written about Bertie because he intends to stay with Bertie 'indefinitely', and when Bertie asks what keeps Jeeves with him despite all their arguments, Jeeves tells him there is a 'Tie That Binds' that keeps them together. Also, there is a scene at the end of 'The Inimitable Jeeves' where Bertie is fully prepared to fire Jeeves for what he's done, but he comes in and sees his perfect apartment and perfect valet and is utterly pacified.
Note closely above the name of Jeeves's club in London, for valets ... the Junior ... (ahem) ... Ganymede Club.
In the show, despite their official Heterosexual Life-Partners status, Bertie and Jeeves both seem almost suspiciously determined to make sure Bertie never ends up with whatever woman he's gotten himself engaged to. Early in the show's run Jeeves will explain that he thinks the fiancée is a "bad match" but as the plot kept coming up it was taken for granted that Bertie was simply never to marry if he and Jeeves can find him a way out of it.
In the very first episode, Aunt Agatha describes Bertie's perfect wife - a description that fits Jeeves like the most fashionable of gloves.
Idiot Plot: Ordinarily, that would be a put-down. But here, the fact that most of the cast are idiots is essentially the premise of the series, so there's no harm done in calling these plots what they are.
Values Dissonance: A few instances of casual racism in the books, very typical of the period. In particular, Minstrels in blackface are presented as harmless jolly fun. There's also a problematic scene wherein it turns out Jeeves has rid himself of Bertie's latest fashion faux pas — bright purple socks — by giving them to a New York elevator operator, who then thanks Bertie using 'Negro' dialect more suited to one of those minstrel shows. (It should be noted, though, that Bertie's reaction is characteristically gracious; clearly the Code of the Woosters is fairly broad-minded.)