The funniest comedy on British TV is back. Its stars talk about scruffiness, mortifying encounters with the public and why they’ve loved each other for two decades The funniest comedy on British TV is back. Its stars talk about scruffiness, mortifying encounters with the public and why they’ve loved each other for two decades I n a north London TV studio, there’s a sense of unpredictability in the air. A gaggle of singing teenagers are on set; there’s a dog traipsing around; and – just down the