Heavily influenced by the style of "This Is Spinal Tap", Ricky Gervais and Stephen Merchant created and produced a revolutionary show that changed the way television sees the "sitcom".
They only produced 12 half-hour episodes, plus a two-episode "Christmas Special", and then stopped. Which was perfect. The 14 episodes exist as a perfect self-contained package that will never outgrow it's relevance.
If you haven't watched it yet, go out and get the entire box set and see how an entire television genre was created and perfected. I guarantee you'll grow to care about (some) of these characters. Including the often exasperating David Brent, who forges on ever hopeful, despite incredible bouts of embarrassingly awkward moments.