Meanwhile, on TBS . . . the newest outlet for postseason baseball yesterday introduced its about-to-be Hall of Fame tandem of analysts - Cal Ripken Jr. for the studio and Tony Gwynn for games.Speaking over lunch in Manhattan, Ripken said he enjoys Charles Barkley and the rest of TNT's NBA studio team but will not try to match Barkley's often outrageous persona."There's only one Charles Barkley," he said. "I plan to be who I am and be myself."Turner bought the rights to the four Division Series and NLCS this fall and will debut a regular-season slate of national games next year. For now, Ripken and Gwynn are signed for only this season.