The last time I really watched the show was back in December, when I visited Howard at his place, and I did watch "A Lost Claus" during that month later. I haven't watched as much for two reasons: the main one is work, and the other is simply the show is not airing anymore on TV (for now, anyway).
Unfortunately, the only way to get the entire series is to get them off iTunes (only Seasons 1-2 were available on DVD in North America), except for "A Lost Claus". Would love to see the entire series get a full series DVD release, or how about Bloo-ray (uh...I mean, Blu-ray
)...at least get them on DVD and add features to them. I began watching when I was 23, and I'll be 30 in June.