Eric Crozier, youngest of the producers at Alexandra Palace, produced Kaufman and Hart's Once in a Lifetime. Crozier used five different sets, a big undertaking in 1937, four of them in the EMI studio and the fifth in the old Baird studio in which there was a camera linked by a cable trailing along the connecting corridor. The Baird studio equipment had been dismantled and had not yet been re-equipped with that of Marconi-EMI.

The cast - Joan Miller, Elaine Wodson, Guy Glover, Douglas Seale, Hannah Jones, Charles Farrell and Kay Lewis - were the first to learn the tricky business of rushing from one studio, along the corridor, to take up a position in front of the camera in the next studio.