Interest in High Dynamic Range (HDR) for live broadcasting continues to increase. Well publicised trials completed within the past year have proven that Ultra High Definition (UHD) images with HDR can be captured, delivered and displayed to viewers on HDR-capable TV screens (1)(2). A number of broadcast organisations are now moving to the next phase of development, drawing up plans to implement permanent on-air UHD services including HDR. In most cases, the new services will be delivered alongside existing High Definition programming and in many cases a simultaneous Standard Dynamic Range (SDR) feed at 3840 × 2160 resolution will be required. This paper will examine the technical and operational challenges presented. An example of a production infrastructure designed from first principles to overcome these challenges is provided.