In light of the different ways of saying ZED or ZEE listened to the following radio podcast...( included the video links at bottom but sorry you will have to cut and paste )
Each week on CBC Radio, Ad Guy Bruce Chambers deconstructs current advertising campaigns, explains how they modify our behaviour, and uncovers the hypocrisy and half-truths.
This weeks podcast and videos can be found on link below...
http://www.theadguy.ca/current-video.html
April 30, 2014
Zed
When US marketers have an expensive product to sell to Canadians, they do a custom commercial for Canada. For less expensive products, they simply use an existing US commercial. Here’s the video: Zellers, Zellers Club Zed, 
Zellers Zeddy, 
BlackBerry Zed10, 
BlackBerry Zee10, Lincoln MKZee.
Comments (2)
Hah! Interesting to see too the differential use of the 'z' -- the header for the Canadian Blackberry commercial refers to 'Blackberry utilisation' rather than the US spelling 'utilization.'
I think some of the commercials for prestigious items also get modified for different areas of the United States. No hard proof but I used to travel for busines, and remember thinking it was strange.