I actually watched the first 4 seasons from Netflix during summer.
I don't think it's that aged really. The show is shot so brilliantly, it has no CGI whatsoever - because they pretty much never show any aliens or whatnot - so it looks very real.
I loved the technology advances throughout those years - you can see it in the show. From normal phones slowly to those beeping things and then to mobile phones. First DOS-like computers used only for writing text and evolving to the computers "today" through various Windows and Mac versions. Scientific things like DNA research becoming a thing. INTERNET becoming a thing. Digital cameras becoming a thing.....
Not to mention fashion, cars etc. evolving.
All in all, a great journey to watch that show. I should finish up the rest of the seasons at some point.
So apepi, watch it, it's on Netflix - all seasons.
That series has an episode on pretty much any well known mystery in the world. All cryptoids, aliens, folklore and conspiracies are pretty much covered.