NBC TCA Announcements ELLEN’S GREATEST NIGHT OF GIVEAWAYS NBC has renewed its highly successful first-ever holiday special event series “Ellen’s Greatest Night of Giveaways” for a new season. “Ellen’s Greatest Night of Giveaways” scored among this year’s the top holiday specials. The Dec. 10 premiere earned 1.2 rating in adults 18-49, according to “live plus …