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.
YMMV: The World of David the Gnome
Adaptation Displacement: Tropers who grew up watching this show on Nick Jr. probably weren't aware that it was based on a series of books.
Also, both nostalgia-tear-inducing opening themes.
Ear Worm: ''Trolls, and wizards, and fairy kings! Birds that talk, and fish that sing!..."
Fridge Horror: It's established that a gnome couple only have children once in their lifetime, and it's a set of twins. Simple math indicates their numbers will never grow and every gnome who dies before having their own pair of children forever reduces the Gnome population by one.
Plot Hole: it has been mentioned several times that when the Gnomes enemies the trolls are exposed directly to sunlight, they turn to stone. However, in a lot of episodes the 3 recurring trolls are out in broad daylight and have no ill effects come over them.