Try a younger viewer (the demographic Disco was created for).
I guess define "younger viewer."
Discovery was originally marketed as TV-MA "generally not suitable for people or individuals under the age of 17."
That said, I grew up absorbing how all of the pre-
Crisis DC Comics stuff works, so I don't feel like keeping three universes straight is
all that big of a deal, especially when one of the alternates (Kelvin) only encompasses three movies and the other (Mirror) only encompasses an ongoing story in
Discovery and a handful of other episodes (1 TOS, 5 DS9, an Enterprise two-parter, and a couple of
Lower Decks gags), and each of those kind of tells you everything you need to know. Unless you just find the inherent concept of alternate timelines confusing?
But if someone pulls up a random episode/movie the odds that it will significantly involve the Mirror or Kelvin timeline is around 1 in 50, so this doesn't really seem like a big deal to me.
(Maths: (16 primary Mirror Universe episodes per the Memory Alpha list + 3 Kelvin movies) / (908 episodes + 13 movies) = 2.06%, though every one of those 16 exceptions
also involved the Prime Timeline if you count Spock Prime being a factor in each Kelvin film.)
Now if you want to talk about how
Gundam has an intimidating number of timelines I'll be right with you...