Even though it's been almost 4 decades ago...

"Showtime Lakers Presents: The Best Quarter in NBA History" refers to the Los Angeles Lakers' dominant first quarter against the Sacramento Kings on February 4, 1987, where they outscored the Kings 40-4, setting an NBA record for the fewest points by one team in a quarter in the shot clock era, showcasing their legendary offense and defense led by Magic Johnson.
https://www.youtube.com/watch?v=h5pzN_oeEkM