John Witty
He was the TV Announcer for the 1961 film "The Frightened City" , the Computer Voice for the 1969 "Doctor Who" serial "The Seeds of Death" and the Announcer Voice for the 1979 television version of "Dick Barton" . 
<triplet> The Frightened City <subj> 1961 <obj> publication date <triplet> The Seeds of Death <subj> Doctor Who <obj> part of the series