I looooooooove The X-Files. There a very special attribute that I really love about it, each episode is different from the other, you can watch a whole season and never feel like it's repetitive. The thing is sometimes that makes the seasons very inconsistent in quality because you get a (very) mixed bag of good and bad episodes.
On a clear day, I rank the X Files above Twin Peaks as my favorite series of all time (on any other day,, they're even): in a way, TP is "only" the exceptionally successful TV adaptation and development of a pre-existing universe (Lynchtown/Blue Velvet). The X-Files started almost (see above) from scratch and set a new standard in TV drama, paving the way for the Sopranos ("only" my 3rd favorite series of all time).
It's biggest downfall was that it never had an end-game or a proper plan for it's conspiracy/alien/UFO/virus/ arc and it rewrote it's own rules numerous times and killed characters never stayed dead. The lead actors were a phenomenon in themselves though and the supporting cast of shady government officials were better than the show deserved (especially Mitch Pileggi). Funniest to watch when offbeat and strange.
i grew up with this as a teenager & i was so happy looking forward to each new episode... for sure i didn't liked all of them, but most of & i still watch my faves from time to time. couldn't believe when i heard about the reboot... again, some very good episodes, especially "Rm9sbG93ZXJz". but i am sooo disappointed how season 11 & The X-Files end, why like that... ?!
Absolutely engaging, though a little redundant at times. The best seasons were One, Six, and Eight, best episode being season one, ep thirteen with Dourif.
Duchovny's performance in general is a great one, a true hero by nature.