31 of the 54 national Super Bowl 2014 TV ads had hashtags

"Our scoreboard at the top of this article has the final count, but here’s the summary with percentages, based on a total of 54 national ads reviewed:
Hashtags: 31 total, 57% of ads overall
Facebook: 5 total, 9% of ads overall
Twitter: 4 total, 7% of ads overall
YouTube: 3 total, 6% of ads overall
Shazam: 2 total, 4% of ads overall
URLs: 22 total, 41% of ads overall"

Source:  MarketingLand, 2nd February 2014