For what it's worth, newspaper archives show that the Tomb Raiders
game was first advertised in British papers starting Oct 31, 1996
(Halloween!). It didn't hit the American papers until Nov 23,
with accelerating advertising (and rave reviews) nationwide as
Thanksgiving approached.
And for what /this/ is worth, the King Tut phenomenon followed
a parallel time course. News of the tomb's discovery hit
newspapers on Nov. 28, 1922. Background stories then revealed that
the actual discovery had been on Nov. 4. Coverage continued to
rise as Christmas approached.