On 31 January 1979, Joy Division recorded their first Peel Session featuring “Exercise One” “Insight” “She’s Lost Control” & “Transmission”. It features recordings made for John Peel's show broadcast on 14 February 1979, and was recorded at the BBC Studios in Maida Vale, London, England on 31 January 1979. None of the songs had been released prior to the broadcast. The version of "Transmission" is one of the few recordings available where both Curtis and Sumner play guitar at the same time.