Sunday's Pittsburgh Penguins championship was historic in several senses, featuring the league's first repeat Stanley Cup winner in nearly two decades, a repeat Conn Smythe Trophy recipient for just the third time ever and a rookie scorer whose postseason points total matched a 35-year-old mark.

Game 6 of this year's Stanley Cup Final also featured big numbers on TV.

Local audiences set the bar high with record marks earlier in the series, and Deadline reports that NBC's 4.8 overnight rating for Sunday night's thriller took things to the next level.

The 4.8, according to Deadline, represents a 28-percent jump from 2016's overnight rating in the NHL's championship-clinching game, when the Penguins and San Jose Sharks drew a 3.7 on the same network.

Sunday's rating also marks the fourth-best Game 6 number on record.