it's a British television programme which I have been known to roll around laughing whilst watching it; this years Christmas episode was hilarious!
I do apologies for one word in the first minute used by the mother.
The reason I enjoy watching it, is because it reminds me of conversations had with my parents by my brothers and I, and the girl (Karen) reminds me of my youngest cousin.
Watch and enjoy! There is nothing religious about it, just good laughs!
The business with the mothers father, might ring true for a few readers. In particular it is quite poignant for my family... the un-political correctness (is that a word) mentioned is quite similar to something my grandfather said recently... the awkward looks were priceless!