In series three, Dad paints a picture of Mum that looks like Margaret Thatcher, Mum tries to practise her counselling on the boys and Adam brings a 'female' home for dinner.
In series five, Dad becomes obsessed with his old ventriloquist dummy, Mum organises her own surprise party, and horrible Grandma is back for more horribleness, and then there's dinner with the family.
In series six, Dad has some strange obsessions, Mum can't contain herself when the boys get new 'females', Horrible Grandma wreaks more havoc - and Jim gets a new dog.