An improved short life coupon system which allows a television viewer to select discount or promotional coupons while viewing a television commercial. Coupon information relating to the commercial is sent to a central station which also contains up-to-date point-of-sale information. This information is analyzed by the central station so that the coupon can be specifically designed to satisfy the viewer and maximize sales.

 
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> System and method for selectively enabling access based on lineage analysis of digital information

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