Mad Men's season finaleis coming up on Sunday, which means it's time to take stock of its wide-reaching impact.
The show has a relatively small audience — 2.2 million viewers last Sunday — but that audience is educated and influential, which helps explain the cultural weight of cable channel AMC.
(In contrast Last Sunday 2.6 million tuned in to HBO's "Boardwalk Empire" and 4.7 million to MLB Division Playoffs.)
The show's critical acclaim and slew of awards has bolstered Lionsgate, which produces the show and cast a golden glow on Rainbow Media's AMC (parent is Cablevision ).
Then there are the slew of product tie-ins.