Out-of-home advertising company CBS Outdoor UK has teamed up with Digital UK, the organisation tasked with implementing the TV switchover from terrestrial to digital, to wrap an entire train in London's Tube in pink livery – Digital UK's signature branding.

The campaign – which features a pink wrapped train on the Central Underground line, train window graphics that look like TV screens, all 272 seats turned pink and information about the switchover to digital on every train door – is intended to raise awareness and provide information about the changes.

The Tube train will carry up to a million passengers between now and the April switchover to digital TV

"The Tube train is a bold and highly unusual advertising piece, which forms a key part of our wider campaign to educate and inform Londoners about digital switchover," says Digital UK's director of communications, Beth Thoren. "Branding the entirety of a Central Line train provides huge impact."

The switchover will take place in London in April and Digital UK is working with CBS Outdoor and media agency MediaCom on a number of informative campaigns throughout the capital's public transit system.