Tobias: As you may or may not know, Lindsay and I have hit a bit of a rough patch.
Michael: Really? When did that start?
Tobias: Well, I don't want to blame it all on 9/11, but it certainly didn't help.
This show was so different and hilarious that there was no way it would ever last in America. I think one of the big problems was just how Fox promoted the show. None of the previews ever fully conveyed exactly what the show was like to watch. Moreover, AD really rewarded their long-time viewers with various in-jokes/recurring jokes that would not appeal to someone who hadn't kept up with the show. Also, as the quote above demonstrates, AD was not afraid to make jokes that might be considered offensive or taboo to many people (the recurring kissing cousins, gay humor with Tobias, etc). It's a damn shame, this show is/was excellent.
Tobias: You know, Lindsay, as a therapist, I have advised a number of couples to explore an open relationship where the couple remains emotionally committed, but free to explore extra-marital encounters.
Lindsay: Well, did it work for those people?
Tobias: No, it never does. I mean, these people somehow delude themselves into thinking it might, but...but it might work for us.