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 decadesIn a north London TV studio, there’s a sense of unpredictability in the air.

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 decadesIn a north London TV studio, there’s a sense of unpredictability in the air.