sentences:  RSC employs techniques to minimise the resultant noise - both in the separation process itself, and in preparation of the NTSC material prior to processing through use of HF linear filtering.Early examples of material processed for commercial re-release using RSC are the "Doctor Who" stories "Inferno" (1970) and "The Claws of Axos" (1971).The resulting DVD release of "The Claws of Axos" also contained a short documentary about the Reverse Standards Conversion process, presented by Jack Pizzey.