I think, therefore I am, I think ...
Have you seen The Young Ones?
Haven't watched liver birds but seen an episode of man about the house. Actually I saw some episodes of its American remake threes company. Quite dated. And one of the actors did this weird thing where he'd say something, usually offensive, and then look straight in to the camera like he'd just said the best thing since Shakespeare.The Liver Birds and Man About The House.
They follow each other and are both set in Liverpool.