In his weekly column, Bar Man Jeff Hoyle discusses a fond visit to Downham… Our next visitor of the summer was Cliff, who I first met at university almost 50 years ago. He was a member of the Hull team that reached the final of University Challenge and has since appeared on Mastermind, so where could we take him to satisfy his intellectual curiosity? The answer we came up with was Wisbech. After a promising start wandering around the Crescent and taking a look in the church, where unusual shapes and separate bell tower were explained to us by a very knowledgeable and entertaining guide, things…