Let's say I write these two sentences (the first one is actually not really a sentence...it's a caption for an image):
Britt Lower in the TV series Severance that premiered in 2022.
I should issue a spoiler alert regarding the TV series Severance that premiered in 2022.
There's only one show with the title Severance...will the "that" in each sentence be interpreted as meaning that there are multiple shows with that title and that this show (uniquely among the others that share its title) premiered in a certain year? I don't want that interpretation but I wonder generally speaking about this "that" usage. The ", which" construction would clarify that there's just one show with that title, but suppose that I prefer the "that" for some reason.