I just found out that it was based on a short running series in the UK.
I watched the first episode and a half tonight and I have to say, they were freaking hilarious. This was also the first time I think the US did a good job bring a UK show across the pond. I think part of it has to do with Judd Hirsch. He is a pretty damn good actor.
I highly recommend watching both shows, which are on youtube. The best character on the UK version is Louise, played by Rachel Bell. She is absolutely fabulous.
You really need to watch these shows.