I remember the scene with normal house spider but it was giant and it was in (I guess) school toilet. I feel like this was a short cut from the intro but i could be wrong. This was like 20 years ago, it was something like dont be afraid of the dark, maybe it was it, please help if you know, thanks
Maybe “The Zack Files: Quiet Please, I’m Reading Your Mind”??
Could it be from a Twilight Zone episode?
https://en.wikipedia.org/wiki/The_Elevator_(The_Twilight_Zone)