1993 November 25, Michele Paige Goudie, “Oh geeze, I missed it.”, in rec.arts.drwho[1] (Usenet):
Makes me wish I had a VCR so I could blow the dust off of all my video tapes and have a Who-athon.
2006 April 4, Martin, “Tennant's Extra”, in uk.media.tv.sf.drwho[2] (Usenet):
To set the scene for the new series, UKTV Gold is showing all of the last one, created by Russell T Davies and starring Christopher Eccleston as the Doctor and Billie Piper as his companion Rose. The Who-athon will screen from 11am-6pm on Saturday, and from 11am-6pm on Sunday.
But the Who-athon starts early on Saturday morning, with retrospectives on each doctor and classic episodes starting on UKTV at 6.30am and running throughout the day - and on Sunday, too.
2013 December 3, erilar, “Re: Doctor Who: The Day Of The Doctor - No Spoilers”, in rec.arts.tv[3] (Usenet):
My daughter and I started a Whoathon last week (I swear, she can find anything), beginning with Hartnell.
Noun: "a marathon of the band the English rock band the Who"