‘Great meeting Rob Brydon at the Chelsea Flower Show today,’ tweeted veteran broadcaster Tony Blackburn earlier. ‘What a very funny and nice man’ he added with an accompanying picture of his new chum. Except the picture was of the ‘funny and nice’, though significantly blonder, taller and less Welsh Ben Fogle. ‘That is not Rob Brydon,’ he mused later. Yes Tony, we know. Is the heat getting to the old boy?