EDITOR’S NOTE: Ryan Zimmerman is a two-time All-Star infielder who has played 15 years in the majors, all with the Washington Nationals. He holds most of the team’s career hitting records, and his two homers and seven RBIs last postseason helped the Nationals win their first World Series championship. With baseball on hold, Zimmerman is offering his thoughts — as told to AP Sports Writer Howard Fendrich — in a diary of sorts while waiting for the 2020 season to begin. In the sixth installment, he discusses the return to American TV of baseball — South Korean baseball.