Before around half a year ago I had never bought any box-set of any TV series or any set of movies, but for some reason The Office US seemed to catch my eye so much that I had to give it a go. I got the box-set of the first 3 seasons from Amazon and absolutely adored them, not just because of the humour, story and great acting, but also because of the amount of content on the box-sets, with so many deleted scenes, commentaries, and other hunourous extras.
Season 4 for me was a bit of a disappointment, mainly because there were only 14 episodes (if I remember correctly) and the amount of extras on the season 4 DVDs were pretty poor (although my guess at this is that season 4 was written around the time of the big writers strike in the US). But season 5 is back to The Office's best with 26 episodes (and also a few customary hour-longs) and hours and hours of extras including lots of commentaries which never fail to interest and amuse!