 At least one full game of Mornington Croissant was played on air.A regular feature that introduces Mornington Crescent is a letters section which begins with the chairman's comments ("I notice from the sheer weight of this week's postbag, we've received a little over no letters" and "I see from the number of letters raining down on us this week that the Scrabble factory has exploded again").The selected letter each week is invariably from "A Mrs. Trellis of North Wales", whose incoherent letters usually mistake the chairman for another Radio 4 presenter or media personality.