Twitter's live sports streaming plans are expanding well beyond college games, the NFL and tennis. It just unveiled plans to livestream weekly Major League Baseball and National Hockey League games for free with occasional ads. This won't replace a TV or internet video subscription (you can only watch if you're out-of-market, for one thing), but it'll be widely available: MLB games will be available in most countries worldwide, while NHL matches will be available across the US. You won't need to log in to start watching, either. And this is apparently just the start, as Twitter is also promising regular programming regardless of the sports you watch.