Good news for fans of British sketch comedy—and specifically That Mitchell And Webb Look, the series that brought us such immortal lines as “Are we the baddies?” and “That’s Numberwang!”—as the U.K.’s ...

When Channel 4 asked David Mitchell and Robert Webb to dip their toes back into the choppy waters of the sketch show after a 15-year dry spell, I expect most people had the same reaction as Webb ...