Who has the advertising tagline: The Gift That Keeps On Giving?

"The Gift That Keeps On Giving" is a slogan used for many years in
selling subscriptions to "Sports Illustrated."

The slogan has been widely distributed elsewhere (and has inspired
many jokes), but Sports Illustrated's television ad campaign of the
1970s popularized it.

In the early 1980s, I was involved in the production of a cable
television advertisement that used the slogan. At that time, the
promotion offered a free football-shaped telephone when you gave a
gift subscription to "Sports Illustrated." The line "The Gift That
Keeps On Giving" was prominently featured in the ad.

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