Im told this is available on Netflix UK (unsure) I just watched the first 3 eps of this season from the bbc iplayer (didnt know there were 4 other seasons)
It's called Outnumbered
Outnumbered (TV Series 2007? ) - IMDb
It's basically a show about the Dunphy's from Modern Family, British style
I actually think the creators of Modern Family probably got their idea for the Dunphys from this show. now when i say its "british style" i mean that the characters and storylines are a lot more reserved and the jokes are a little smarter
Great show if you like Brit shows and can find it