On the season 4 premiere, we\u2019re joined by the Laser Time Network\u2019s own Diana Goodman!\xa0
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This week, the staff must navigate being constantly filmed by a documentary crew, Mark is unfortunately still an absolute jerk, Dr. Elizabeth Corday makes her debut, a good Samaritan suffers a critical injury after saving a man\u2019s life, a brawl breaks out in the middle of the ER, Morgenstern suffers a heart attack, and oh by the way, this entire episode aired live on NBC. Twice.