I remember hearing during a shiur on Neiros Shabbos and Chanukah...shalom bayis/Shabbos trumping pirsumei nisah/Chanukah, etc.
There was one source which said that the pach shemen was actually discovered behind some dislodged dirt or bricks used for the sotah's drink on the grounds of the mikdash.
Has anyone heard this and can you share the source?