Indeed, this serial and Time-Flight together offered producer John Nathan-Turner his highest consistent chart positions. Earthshock was the only serial in JNT's producership whose episodes were all in the top fifty of programmes watched on British television. The death of Adric was also a considerable gamble, since no long-running companion had ever been killed on Doctor Who before. Special, downbeat titles were commissioned for the end of part four, making the final part the only episode, as of December 2014, to have no end theme music and play only silent credits.