Garden Living Room Dining Room: the three centrepieces of Middle England's social arena and the three backdrops in Alan Ayckbourn's incisive and scathingly funny trilogy. These renowned interconnected plays epitomise and riotously send up the cosseted values of Britain in the late seventies. Eavesdropping on a series of events entwining the same six characters between Saturday afternoon and Monday morning the simple turn of events in ""Table Manners"" ""Living Together"" and ""Round a