Derry Girls: Season 2, Episode 2 is a Deconstructive Parody to "inspirational teacher" movies like Dead Poets Society, as it's demonstrated that the qualities that make someone a Cool Teacher don't necessarily make them a good teacher. Ms De Brún inviting the gang around to her house for wine is rightly called out as inappropriate. Her laidback attitude comes across as a Blithe Spirit, until it's ultimately revealed to be because she's just an Apathetic Teacher, which is why she ends up quitting for a better job rather than being forced out by Obstructive Bureaucrats as would be expected in such a film.
How I Met Your Mother: In "Robin 101", when Ted gives up on teaching Barney about Robin, Barney stands on his desk and calls out "O Captain, My Captain" to him.
The Lunchroom: Mr. Parker resents Stacy for trying to turn him into some sort of "Dead Poets Society like teacher".
Bob's Burgers: The scene in "Bob and Deliver", where the students stand on their desk and rip open bags of microwave popcorn, mimics both the beginning (where the students rip a chapter out of their textbooks) and the end (where the students salute the departing teacher by standing on their desks) of Dead Poets Society.
My Little Pony: Friendship Is Magic: In "Marks for Effort", the pony students in Spike's class have their hooves on the desks, saying "O Dragon, my Dragon".
sketch spoofs the movie's ending with Mr. Bunting (Fred Armisen) gathering his belongings when his students (Beck Bennett, Kyle Mooney, Jay Pharoah, Jon Rudnitsky, Pete Davidson) stand up to show their appreciation, but one gets decapitated by the classroom's fan.