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The original was posted on /r/todayilearned by /u/PegPelvis on 2023-07-04 23:24:13+00:00.

Original Title: TIL that the BBC had no archival policy until 1978, and many of its old broadcasts were only aired live. A number of BBC broadcasts are lost, including a show featuring a then-unknown Bob Dylan; 97 episodes of Dr. Who; and most of its coverage of the moon landing.