Channel 4 has alighted on the perfect venue to launch Cucumber, former Doctor Who writer Russell T Davies’ candid new drama series which looks at gay life across different generations. The show, which comes with a sister E4 series Banana, (the titles are inspired by a scientific study on the erection), will receive its debut screening at London’s most phallic building, the Gherkin. Whether Channel 4’s drama department succeeds in its request to cover the Gherkin with a sheath for the launch is a matter for the capable hands of London mayor Boris Johnson.