Infographic: How Twitter reacted to the Mad Men series finale.

By Melissa Severin

Using a mixture of data from C-K’s proprietary Pulse tool and Sysmos, our social media team and analysts–who happen to be big Mad Men fans–monitored real-time Twitter reactions to one of contemporary television’s most beloved shows. While it was Mad Men’s big finale, the team regularly looks at major social events, holidays and product categories to see how they play on social media. For brands, we might monitor overall sentiment but also go much deeper looking for opportunities to participate in real-time conversations with fans or discover future campaign opportunities that will lead to growth and sales.

Our Mad Men monitoring was just for fun but some brands around the web did get in on Mad Men finale fever. Of the more than 222k tweets mentioning “madmen” or #MadMen that we monitored, Arby’s tweet of an old ’70s ad ranked among the top 10 most retweeted on the night of May 17. Spoiler alert ahead coming up in 3, 2, 1: Of course Coca-Cola was also a major brand winner as the show ended with its iconic “Hilltop” ad. Coke’s tweet that night, sent out nearly an hour after the Mad Men ended, was the only other product brand to crack the top 10 most retweeted tweets that night.  Scroll on for more Mad Men finale facts but heed the warning for those of you who haven’t watched the episode yet.

More #spoilers ahead.