Mad Men is approaching the conclusion to its seventh and final season in 2015, and while AMC might not have regrets about the popular drama, HBO sure does.

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HBO CEO Richard Plepler revealed to Business Insider on Thursday that Mad Men was certainly the one that got away.

"I'm an unabashed fan of Mad Men," gushed Plepler. "You know I love the show. I think Matt [Weiner] is a gifted writer and producer. I was a big fan of the show all through its incarnation."

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Weiner had brought the series to both HBO and Showtime before ultimately finding a home for the program on AMC. While HBO had seriously considered the series, there was initial conflict over who would produce and ultimately the deal didn't work out.

The ad agency drama went on to thrive without HBO, however, and was considered to be a breakout hit for AMC, forever changing the landscape of network television. It evolved into an award show darling and catapulted its actors, particular leading man Jon Hamm (Don Draper), into stardom.

While Plepler regrets not having taken the show on, he doesn't dwell too much on the decision to pass on the now popular series. "Honest to god, we don't spend time lamenting what we don't have or mistakes," he insisted.

Mad Men continues on AMC with its seventh and final season in the spring of 2015.

Tags: Mad Men AMC television