If these were normal times, if this were any other NHL season, Mike (Doc) Emrick would be perched inside the NBCSN broadcast booth on Wednesday evening, high above some teeming hockey rink, preparing to call the first game of the Stanley Cup playoffs like always. He would be poring over a spray of lineup cards, stat sheets and personal notes from the teams’ morning skates, all potential info for his play-by-play. He would be thinking about the opening puck drop, reminding himself to back away and let the crowd noise breathe. Perhaps he would also be sipping his favorite herbal tea to fortify his throat, or noshing a snack-sized cup of peanut butter for extra energy.