Awesome Music: The boys changed their theme song from ABBA's "Take a Chance On Me" to the feel-good rocker "(It's A) Departure" by John Roderick and the Long Winters after moving to Maximum Fun. Roderick has been known to open the brothers' live shows by playing part of the song live when he's available.
Before also ending with "Departure", the show's ending music was the mashup masterpiece "Play Your Part (Pt. 2)" by Girl Talk.
Big Name Fan: The "McElroy Spirit Guides", which are the fans who send the most yahoo questions to the show, and are also very known with the fanbase. These include Drew Davenport, Zoe Kinsky, Rachel Rosing, Ira Wray, Jakob Locker, Morgan Davy, Seth Carlson, and a lot more.
Not MBMBAM-specific, but in all their projects, the McElroys do their best to be inclusive and accepting of all their fans, and quickly apologize whenever they accidentally say or do something hurtful. This article goes into detail about how the brothers' accepting attitudes help make the show uplifting and comforting, and has its own heartwarming quotes about MBMBAM's importance.
Podcasts are an inherently intimate mediumóa voice not just in our ears but in our head, because thatís where the sound locates itself when you listen on headphones. The hosts start to feel like your friends. The McElroy brothers escalate that feeling—itís not a friendship youíre sitting in on, but family. Family that is witty and fast, determined to make them and you laugh, and—and this is not a trait all real families even offer!—genuinely concerned about not hurting your feelings.
The last episode of the TV show ends with the boys just sitting together on a stage talking about how much they love each other and how glad they are that they got to make this show together. It gets so emotional that Justin actually starts crying, so Travis rubs his back while he and Griffin crack jokes to cheer him up.
Hilarious in Hindsight: In episode 48 (from 2011), the brothers received a message with the sender giving a "internet fist-bump to Griffin, who right after said he just fist-bumped his monitor, and having no idea why he just did that.
Travis basically invents Pokémon Go in episode 152:
"I hope you're listening Pokemon Game developers: If you want to evolve your Pokemon, you have to make them eat another Pokemon of the same type"
The early Running Gag about how Griffin is the only single member of the team, especially now that he's married. Ditto the jokes about no longer being funny after having kids, because he's a dad.
The brothers apologizing for Small Reference Pools for making jokes about Dungeons & Dragons ("She's a freak in the bedroll.") and video games, considering many recent fans got into them through their D&D shenanigans or Justin and Griffin playing video games. Ditto Justin in episode 113 joking that recording an episode of them playing D&D is about as likely as recording an entire episode high on salvia.
Early on in episode 97, they're asked for advice on how to leave a D&D party, and they suggest having the character retire and die of old age. Griffin takes a moment to point out that playing out a natural death is something that people have probably done without joking. Five years later, at the end of The Adventure Zone: Balance, the exact situation happens with Travis' character Magnus, played completely seriously.
Justin mentioning a new follower in Episode 58 named @babylonian. That's Nick Robinson, who would later become Justin and Griffin's co-worker at Polygon (and Griffin's co-host on both Car Boys, Touch the Skyrim, and Cool Games Inc.) Became Harsher in Hindsight after Nick's Role-Ending Misdemeanor that led to him being fired by Polygon (check the Car Boys page for further explanation) and basically becoming an Un-person to the fanbases of Nick's former shows.
Episode 199: Griffin asks if Travis' arachnophobia is public knowledge. If the fanbase didn't know then, they certainly do after watching the TV show.
Episode 204: Griffin's looking forward to The Sims 4. Monster Factory fans will know he's gotten a lot of mileage out of that game, leading to such gems as My Two Dads and "Sweeps Week".
In Episode 356, while talking about the revival of Twin Peaks, the brothers give out fake spoilers involving "Doug Cooper", Dale Cooper's identical twin brother. The third episode of the revival reveals that Agent Cooper has a doppelgänger named Dougie.
Milestone Celebration: Episodes 100: Reflectionz: A Look Back and 200: The Two-Hundredth One, where some of the listeners who previously send questions tell what happened after they followed the brothers advice.