It was a year when comics at opposite ends of the scale - offensive or annoyingly bland - were taking up room on our television screens and selling out ever-larger arena tours. And the depressing rule of thumb (with a few honourable exceptions) that the blander the comic, the bigger the venue, held true in 2010, so thank goodness there were some terrific shows by talented performers in medium-size theatres. As it happens, the most memorable show I saw all year was in a small venue at the Edinburgh Fringe (the American Bo Burnham).