The series has fairly serious story arcs, with the bulk of the plot generally taking place after the funny review. After major events, Linkara tends to have a few episodes with no story (or very little), which are just the funny review, with maybe a bit of foreshadowing or a more dramatic post-credits scene.
Discounting the story segments and only focusing on the reviews themselves, the second and third parts of his review on Justice League: Cry for Justice were broken up by his review on a goofy, funPower Rangers Zeo comic. This came right before the final part of CFJ, which saw Lian Harper getting brutally killed, causing Linkara to be so disgusted that the comic murdered a recurring child character for shock value that he completely broke character over what happened, getting legitimately enraged. This was then immediately followed by a review on a Care Bears comic of all things.
Entry #23 is the most brutally scary of the series, with J returning to the abandoned house and being teleported all over the place, hearing the horrible static, somehow ending up in the factory seen in #22, and actually meeting the Slender Man. Entry #24, by contrast, 'only' has the Paranoia Fuel of J's own house apparently making him disappear for hours at a time, which by the standards of the series is relatively calming.
Entry #46 which returns to an only slightly lesser scary than that of #23. In it Jay breaks into Alex's house and comes in direct contact with Slenderman. This was a huge shock, considering the lack of frame splitting prior to his appearance. This was followed by Entry #47, which is entirely shot in daylight hours and involved nothing but talking.
JLA Watchtower / DC Nation — After the nasty emotional rollercoaster of the Olympics plot (which involved the deaths/resurrection of half the founding Titans, Troia having to make her children Dead for Real) and Ra's Al Ghul's Plague (involving a global plague so virulent it killed millions of people, had heroes dropping like flies, and almost killed Superman), followed up with a rather silly "Annual Chili Cookoff" plotline set at Warrior's bar.
lonelygirl15 , after a long string of Wham Episodes, had "Backyard Bikini Patrol", an episode devoted largely to characterization and fanservice.
RWBY: Volume 4 acts as a breather season. After Volume 3's traumatic events, the characters all need time to come to terms with what's happened, resulting in Volume 4 being character heavy. By focussing on world-building and introducing the rest of the villains, the show gives the audience time to absorb Volume 3 along with the characters.
Warning! Readers Advisory! has had a couple—one to fill a slot on the schedule that was delayed due to some technical difficulties, and one as a regular breather after a handful of plot-heavy episodes that came before.
Noob started having breather episodes after Cerebus Syndrome settled in. Season 3, in which the very faction to which the protagonists belong is in danger of outright disappearing after its almost keystone top player gets banned, has an episode focusing on a video game tester trying out the game. Season 4, in which the main guild's members are leaving one after the other, has the introduction of a new member that has an original way to blow off steam from his job as professional player.
The Sharkasm Crew puts in a lot of effort is to hype up the Paranormal Activity series of tournaments and make them the very best they can be. Thus, side tourneys such as TGIC were made.
The third episode of Don't Hug Me I'm Scared. The only gore comes from the food at the picnic and the scrubby of Yellow Guy's brain, and is relatively low-key, a much longer time is spent on things being perfectly fine and happy before it gets dark, and it's All Just a Dream, ending with a heartwarming golden moment (which in this series, is a very rare sight).
Petscop: Easter, 2019, was a huge day for Petscop, with 4 very lore-heavy episodes being released within the span of a few hours. Most of them are a Wham Episode and a half, but Petscop 21 is... a video of the player oddly running around a room for a few minutes, with the only hint being the text at the top of the page: "care-dancing-sign". As it turns out, the video syncs perfectly up with the song "The Sign" by Ace of Base, with the implication being that this is Care as a child, dancing happily.
The episode "P to the Fourth" from Object Terror. It is probably the most light-hearted episode of the second reboot. For one, the only gore seen in the episode was when Coffee Cup's face explodes and when Wallet is crushed by spikes when he got eliminated. The challenge is also not as serious as later episodes of the show, as it was simply a drawing-on-the-whiteboard challenge. Definitely comparable to the later episodes which have dark gorefests that are "A Perplexing Massacre" and "Kiloto the Minoto."
Minilife TV: In between "The Lost Undead", which deals with Snowball dealing with the death of Rob, and "One of a Kind", which deals with the aftermath of "The Lost Undead", is the more lighthearted episode "Chris and Ian Shamelessly Promote Themselves", where Chris and Ian find a way to appear on three different shows at the same time.
"Nickelodeon Rebrand Pitch (1984, Low Quality)" is a tape distributed by MacNeil containing a pitch for Nickelodeon's 1984 rebrand, which would introduce their now-iconic splat logo.
"Family Guy Anomaly (2001)", while not considered part of the timeline, qualifies as this by virtue of being an April Fools Day episode.
"Tele-Freq Help Section (2003)" actually provides some valuable insight as to how exactly the Tele-Freq brain reader works: Through a process called "conscious telemetry", the reader studies the customer's tastes in programming and sends the data to TeleBlue's control servers, where it is run through a series of algorithms and then sent back to the viewer as a program that fits their tastes.
The Hire: "Star" is easily the most lighthearted installment of the series, being a slapstick comedy about the Driver getting hired to knock an egotistical pop star down a peg. It's also sandwiched between two of the series' darkest episodes, one a moody character piece with an ambiguous ending and the other a bleak and brutal Tear Jerker that's one of the only episodes to have explicit social commentary.
is... a video of the player oddly running around a room for a few minutes, with the only hint being the text at the top of the page: "care-dancing-sign". As it turns out, the video syncs perfectly up with the song "The Sign"