This Week in Baseball (abbreviated as TWiB, pronounced phonetically) was an American television series that focused on Major League Baseball highlights. Broadcast weekly during baseball season (and in its second incarnation, prior to marquee MLB games and during rain-delays) the program featured highlights of recent games, interviews with players, and other regular features. The popularity of the program, best known for its original host, New York Yankees play-by-play commentator Mel Allen, also helped influence the creation of other sports highlight programs, including ESPN's SportsCenter.