I know not everyone likes American Sport in general and Baseball in particular but if you do this is a great deal. You can get MLB TV for $21 (+ tax) for the rest of the year right now. You get HD coverage of all the remaining game (inc. Playoffs and the World Series) and access to the archive of all of the games played already this year. You can stream it on a lot of smart TVs with the MLB app and on lots of hand held devices. It seems like a cracking deal to me if you like baseball.
NB It will automatically renew in March next year so set a reminder to cancel before then