The 20-second play clock begins; * With no runners are on base * A ball is called if the ball is not pitched within 20 seconds * A strike is called on the batter, if he is not ready 5 seconds before time expires The 90-second play clock begins; * When the last out is made, and ends when the pitcher begins his windup * Batting team is penalized a strike if they are not ready in 90 seconds * Fielding team is penalized a ball if they are not ready in 90 seconds * Half-inning clock is extended to 105 seconds for televised games * Play begins whether the network is ready or not.