-The Big Doors have been redesigned a bit- the dots around the show's logo have been replaced by a silver border.
-There are also silver borders around the doors' inside squares.
-The show's logo is smaller, but a little brighter.
-The "40 Years" text has obviously been removed from the giant dollar signs in between the doors.
-The second episode taped for this coming season (the one in the afternoon) is currently set to air on October 8th.
Source: Golden Road.net