These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Epileptic Trees: The All Just a Dream ending created an interesting conundrum — since the show had cameos and crossovers from a good dozen other shows, are all those shows products of an autistic boy's imagination, too? And all the shows they crossed over with?
The Birdman of St. Elsewhere was the designated comic relief for the first few episodes. Then the Birdman decides he's fed up with being in the mental ward and wants to fly away from the hospital, so he jumps off the roof. It's not every day we see Plucky Comic Relief commit suicide.
When Nina Morrision died suddenly, her heart was donated to Dr. Craig's transplant patient. The last scene of that episode showed Jack Morrison in the ICU, using his stethoscope to listen to his dead wife's heart beating in the transplant patient's chest. Here's the episode.
