The first marker came on the power play, which was an area of focus for the Avalanche last week.
"I think the guys worked really hard at it earlier in the week. We had a couple days there. We had the luxury of having a long practice week, so we were able to hit our power play a couple times," said Bednar, commenting on the man-advantage work prior to the game. "They worked hard at it, and they did a good job of getting to the net."
With the tally, Iginla moved past former Avalanche forward Pierre Turgeon (190) on the NHL's all-time power-play goals list. The score put him only 13 behind Joe Sakic, who is 15th on the league's all-time goal-leader chart.
The Penguins countered in the final frame, beating goalkeeper Calvin Pickard with a power-play blast through traffic just moments after having a marker called back for interference.
Not to be outdone, Colorado captain Gabriel Landeskog responded with a man-advantage rip from inside the faceoff circle to force the Avs back into contention.
It was Landeskog who would end it, too. Just 22 seconds into the overtime period, he deflected a shot from Nathan MacKinnon that caromed up in the air and into the net for the win.
"I think we obviously got a good power-play goal at the end of the third there to force it to overtime and give us a chance to win the game. Obviously, a lucky bounce in overtime," Landeskog said following the triumph. "I think I kind of just swung at it. Overall, it's important to get the two points, but as a group we got a lot better with our decision making and plays with the puck."
Pickard stopped 28 shots in the win, which was his first game in net as backup tender of the Avs.