https://m.youtube.com/watch?v=6QG4n3-rKTs
They regularly have a half billion views, and are literally just someone opening Kinder Surprise toys and playing with them.
I have no idea why she loves them, but she just stays captivated until we put her back to Playschool.
For reference, she's never seen a Kinder Surprise in her life, or seen Frozen (or any Disney movie), or anything that would explain her draw to these videos.
As for the videos she does watch, at 1.5yrs old she already knew how to pick a new Related Video, or drag the slider back to rewatch a video, and will happily watch the same Playschool episode or Peppa Pig clip non stop for hours if we let her.
This new generation who have never known anything other than internet connected touch screens is truly fascinating to watch. Using tablets and phones is as natural as walking or playing.
I am getting sick of cleaning the TV though, since we can't manage to teach her that it's not touch screen!