Alas, minutiae of that variety is all too real in my life. Only the other week, I purched an entire book on the history of the footnote. (Anthony Grafton. The Footnote: A Curious History. 2002)
Now the real question is - does the Onion mean the History Channel was finally providing the bibliographies and footnotes to all the shows it's already shown... or would it be devoting a day to the subjects just in general, with historical perspective?