Tonight OLN will feature a double dip of games. According to OLN, Nashville takes on Dallas at 7:30pm (NHL.com has the game starting at 8pm) and then Calgary visits San Jose at 10:30pm.
If you want a game in HD with Comcast, you can watch Tampa Bay and the Islanders on delay, beginning at 1am Tuesday and again 7am Tuesday. Since INHD has shown the OLN game in HD, maybe this is not correct. The Tampa/Islanders game was scheduled for OLN but changed to the Nashville/Dallas game recently.