It appears as though PIMs are not always being calculated correctly. After a quick comparision of TSNP between NHL.com and TSN, I found the following 2 discrepancies: Todd Simpson, D, ANA: (10/09)
TSN: 10 PIM
NHL: 15 PIM (Game Misconduct and Fighting)
Marty Turco, G, DAL: (10/11)
TSN: 8 PIM
NHL: 10 PIM (Roughing, Slashing, Leave Crease, Roughing, Roughing)
Now admittedly, I'm not sure about Turco's 2 roughing calls at the end of the game, but if it was a double-minor, then this goes back to a long-standing issue with TSN not correctly totaling double-minor penalties.
TSN, please look into this.