Never seen it before in my life - until today when I watched all of series one (off sick just now).
How can I not have seen this before? Absolutely fabulous stuff. Alison Steadman is so identical to my Auntie Steff I can't believe it. 
No point to my post other than it's so nice to watch something that genuinely makes you laugh and I can't remember the last time that happened with a TV programme. 