The IT Crowd is hilarious!
So I'll give a few pointers: get your BT-client up and running, then go to mininova search for "it crowd"
and look for so called "releases" with "[eztv]" in their name. When you click on the green arrow icon, you can download the torrent file which you will then have to load/open/whatever in your BT-client. Click on the release to get more info about it and to get to the magnet link (whatever that is...)
The best thing about watching tv series this way: there are no commercials!
You will have to get used to the various "britush" accents though...