I have only ever watched the first season as of now, so I can only comment on that. But still it is probably my favourite TV show, yet I can't really explain why. Something in the contrast between that calm and lovable small-town atmosphere that somehow makes you feel calm and at home, and the mystery surrounding everything and permeating each character. It's hard to explain, but I think just by watching the first few episodes you know what I mean, and this subconscious feeling is probably what allowed the show to be successful. In any case, nothing like it has ever been seen on TV before or since. The latter is a bit of a shame, actually.
It's just a world I always like to dive into, you feel like you know the characters so well. Also, they're some of the most memorable characters ever, on the big or the small screen. Do you know the feeling when you see some actor in a movie/show and recognise the face, and you have to go look up on IMDb where you know him/her from? The result of this search is, for me, disproportionately often Twin Peaks, which just confirms my opinion that Twin Peaks had some of the most memorable and interesting characters ever written and played.
Exactly. On that note, to people who agree with and enjoy this I would also recommend to pick up a Blu-Ray or DVD of Jim Jarmusch's latest movie The Limits of Control, which is just about that. Quite a different setting and a rather banal storyline, but it is really in the same vein. Mystery everywhere, weird characters to wonder about, an unbelievable love for details, excellent soundtrack and cinematography... and an obsession with coffee!

I was planning on updating my watching experience after I finished the first season, but I have to stop for a second and comment on something. I'm not even five minutes into episode 2 and already I think I'm going crazy. This family is eating dinner at a table. This guy on the left side is wearing a giant Indian hat that obscures every part of him, and I bet it's their grandfather or something. Weird enough. All of a sudden, some crazy family member busts in with bellhops unpacking what the guy refers to as sandwiches. He raves about these baguettes he had in France, tosses his father one, and before you know it, the two are hoisting themselves on this impromptu meal, completely oblivious to the mother, who must feel amazing after they completely disregarded her dinner. They're jabbering away as they stuff themselves, and it must be a telepathic conversation, because you don't know what the fuck they're saying, but they seem to understand each other perfectly.
Aside from Arrested Development (which I also got into), this may be one of the best shows I have ever seen.

Just another great WTF moment from Twin Peaks. :-)

Ah, the Horne family. They're a great bunch. I love those guys. They're just... they're a hell of a lot of fun. (Snicker.)

I recently started watching the show American Gothic. So far it reminds me of a Twin Peaks set in the south. Obviously nothing can replace Twin Peaks, but if ever there was a spiritual successor, I think it might be American Gothic.

Thanks for the recommendation! I'm going to have to check that out some day. I see it's got 8.2 stars over at IMDb, which for an IMDb rating for a TV show is almost freakishly high.
Twin Peaks has got 9.4 stars though, holy guacamole!

Just had to bump this. In Japan around the time of Fire Walk with Me's release a very enterprising coffee company produced ads for their product set in Twin Peaks featuring the characters. Yeah.

OK, I've never heard of twin peaks, but you just helped me realize exactly how dirty of a mind I have.
I just saw the title. Guess what I thought of.
Wow.

Isn't that awesome? They are included in the DVD boxset (the Gold Box one).