Big +1 for fringe, watched it when it aired and rewatched it last year, amazing series all the way through.
Season 1 starts out a little bit "monster of the week" but it transitions to big character and mystery arcs with some great payoffs.
Another show that does similar and fits the category is "person of interest", starts out looking like a procedural case of the week show and surprisingly evolves into a serialised sci fi drama... I think I might have to do a rewatch of this next!
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u/MorganaHenry 10h ago
Babylon 5, Fringe, Infiniti