Babylon 5 had big multi-season story arcs in the era of self-contained monster of the week episodes meant for syndication and watching in random order.

It also has some very good character development. The Londo/G’Kar dynamic is pretty epic.

But it does have the random weak early episodes others mentioned, and of course it is a product of its time. It has a high episode count and 90s SD vfx.

It’s still one of my favorite shows and I will do a watch through every several years, but it would have SO much potential as a modern remake with 6-10 episodes per season. Kind of like the expanse but with more fantasy and imaginary physics. The space physics were very good though, especially for the time.