THE NIGHT TELEVISION FORGOT TO LAUGH. March 25, 1986 — Johnny Carson put down his cue cards, and Willie Nelson tuned his guitar under the blinding studio lights. It should’ve been another night of jokes and applause. But when the first notes of “To All the Girls I’ve Loved Before” began, something shifted. The cameras caught it — a silence deeper than words, a moment too real for TV. Viewers thought it was scripted. It wasn’t. Johnny’s voice cracked halfway through the song, and Willie just smil