Is this a thing?

[PoindexterOglethorpe]

15. Yes, little kids are that way.

You might consider establishing a rule that one movie or show cannot be watched over and over, not without at least one something else in between. I wouldn't let my kids keep on repeating any one show or movie like that, and since I squelched that inclination at the very beginning, it wasn't a problem.

But you do what works for you and your daughter. There is no one right way.

And keep in mind, that while we adults don't usually watch something quite that repetitively, we like our favorite TV or movie series or book series -- Game of Thrones, anyone? because there's a comfort in already knowing the characters, the sorts of situations they'll find themselves in, and the typical resolutions. It's very common for us to favor that familiarity. Young children simply do that more intensely.