Approval of God: Richard Newman, the voice actor for M. Bison in the Street Fighter cartoon, not only approves of the annotators, but also gave a promotional voice reading of some of the series running jokes as a way of thanking the annotators for helping signal boost a donation to him. This voice reading was added to the channel's theme song video.
I Knew It: Unintentional. Early in Foodfight!, an annotator mentions that Christopher Lloyd's character moves like something is controlling him from the inside, Men in Black-style. (Then the ending reveals he's a robot.) The same annotator gets angry at The Reveal.
Keep Circulating the Tapes: Defied. Avirosb has been recording the annotated episodes in case anything causes their work to be lost, that way they can just be reuploaded either on the channel or somewhere else.
Milestone Celebration: Downplayed heavily in that their 1,000 subscriber mark was given a quick murmur at the end of a video announcing that they were taking down Foodfight!
These pages are maintained mostly by the annotators, though with so many they rarely end up talking about themselves.
The whole thing gets recursive during the five-year special: during the segment for Mortal Kombat: The Journey Begins, Raiden's appearance comes with the annotation, "I've arrived to pose for the Annotated Experiment TV Tropes picture!" referring to the page image when the special was posted◊.
Schedule Slip: Starting with The Legend of Zelda, uploads shifted from one episode every few days to every Friday (sometimes slipping to Saturday), due to the reduced number of contributors. The decision to annotate both Sonic Underground and The Super Mario Bros. Super Show saw a return to a more frequent schedule, with the former posted on Tuesdays and the latter on Fridays.
The fateful day YouTube discontinued collaborative annotations. The beeupyou channel now serves as an archive of past works, with the shared channel being how they now do things — but it took about a month to set up while everyone campaigned in vain for the collaborative annotations feature to be reinstated.
Every time YouTube makes changes to the annotation editor, it's not uncommon to see the Annotators criticize these in the channel comments.
YouTube also took out pause annotations — though some viewers say the feature was abused anyway.
Due to Youtube's copyright rules, the Savage Dragon videos have been autoblocked. This meant that the show had to be skipped in the Five Years retrospective. Also, while most of the Tricky People videos are intact, the first one has been autoblocked, rendering the rest of the riff supremely confusing.
The Nutshack has since suffered a similar fate, with all but part 2 blocked for some reason. Though why anyone would want to claim copyright on it is known only to the person who made the claim.
Always called out with the lack of certain modern-day techs. However, when Dr. D says that acne can be cleared out with soap and water, he's called out for making the situation worse — soap can actually undo the good that facial grease is trying to do.
The burial of the Nickelodeon time capsule had a lot of this with most of the tech mentioned being all but gone by the 2000's. Though, whether bicycles will be forgotten by the year 2042 remains to be seen.
Invoked during "Backside To The Future". A character pulls out a large blocky, metallic-looking folder causing one annotator to riff "this is my cell-phone".
What Could Have Been: The channel was originally going to annotate Wing Commander Academy alongside live-action segments from The Super Mario Bros Super Show (the ones which originally aired with the Legend of Zelda cartoon on Fridays). But when they discovered that there were no WCA episodes to be found on YouTube, they decided to annotate Darkstalkers instead. They eventually did the episode with the Warrior King to complete the four part arc that was in Street Fighter, Mortal Kombat: Defenders of the Realm and Savage Dragon.
Instead of the Sonic OVA, Hulk Hogans Rock N Wrestling was anticipated to being annotated over the six weeks. It was changed to the OVA at the last minute since WWE hates fun.