Hi,

I just finished rewatching Kingdom Hospital as the first time I watched it was before I'd read the Dark Tower. I know that SK added a lot of DT referrences into this series so I was watching for these links.

All the way through the series they show a drinks machine with Nozz-a-la all over it but at the very end of the last episode,

after they have gone back and changed the past by saving Mary,
the drinks machine has changed to Pepsi. Can anyone explain to me why/how, in the context of the Dark Tower series? Have they actually returned to a different version of their world? I'm slightly confused! Thanks