Midway into the finale of season 3 of Stranger Things, when all characters are at the height of tension and fear, two of them break out into a song of Never-Ending Story. The reaction to that moment by every single character is, to put it mildly, priceless. This audacity of sneaking in a musical in the middle of a horror-thriller has what made Stranger Things the show it is and the season finale alone, lasting a little over 75 minutes, has so many such moments it is quite hard to not rank it as one of the best closing episodes to any season in any show. In this day and age when good shows…