The 1970s Office Season 1 Back to the Future

Two teams of advertising executives compete to win the Raleigh of Nottingham's 'Raleigh Chopper' Christmas ad campaign. One team live and work the 1970s - without computers, mobile phones, internet or even motorcycle couriers - and has two weeks to put together a pitch. The other has team access to all modern technology, but only has a day to do the job.