All of the D-Day reports clips (10 minutes of audio) featuring Benedict that have been released so far. [source]
"The BBC's 70th anniversary coverage of the second world war Normandy invasion will include Radio 4 broadcasts of the corporation’s original 1944 news reports, read by Benedict Cumberbatch.
The D-day news reports will be broadcast at the same time of day as their original transmission time 70 years ago, beginning with Cumberbatch’s reading of the 8am bulletin during Radio 4’s Today programme on Friday and continuing until 9pm on Sunday.
Others will be broadcast during Radio 4 programmes including The World At One, PM, The World Tonight, Broadcasting House and The World This Weekend.
The new recordings will also be available online on the Radio 4 website, along with more than 200 pages of archive radio bulletin scripts from BBC Home Service D-day broadcasts being published for the first time. Many of the scripts are annotated with subbing marks by the writers and newsreaders of the day.”