 Game play is often preceded by the reading out of a "letter from Mrs Trellis of North Wales" in which Mrs Trellis writes, usually to a random celebrity, to ask a ridiculous question or make an incoherent comment.Lyttleton reads aloud a barcode, and panellists attempt to guess what product the barcode comes from.For example, Lyttleton will read out some variation on “Thick black, thin white, thin black, thin white very thick black” etc.