Facebook saw 185 million Super Bowl 2014-related interactions on the night of the game

"Even during a historic blowout, Facebook drew 50 million people and had more than 185 million interactions related to the Super Bowl last night.
Injury-plagued all year, Seahawks receiver Percy Harvin’s 87-yard kickoff return at the beginning of the second half topped the night on Facebook. Next was Jermaine Kearse catching a 23-yard touchdown pass to extend Seattle¹s lead 36."

Source:  Lost Remote, 3rd February 2014