Extras, I think, is better than Ricky Gervias' previous creation, The Office. The show doesn't need to have an audience laughing at it to make it funny. The jokes can be obvious, and can be sophisticated. Either way, anyone can get amusmant out of the show.
I'm not surprised that major stars are lining up to go on this show. Ben Stiller, Kate Winslet, Samuel L Jackson and the second series' stars (which I don't know at present - the series will air in a couple of weeks) are massively huge names and I guess Ricky must be, for them to want to star in a British comedy.
I don't know what else to say. Looking back, my reviews always seem terrible, and I'm sure this one is too, but the show can be summed up as absolutely fabulous!