We don't have TV at all and I am seriously wondering what to do about the World Cup. It looks like Univision will have an app to broadcast all of the matches via streaming. I can't seem to find the name of the app for sure, but I think its Univision deportes. I have no idea if there is any English content.
[Edit: You can change the app to English once you create an account. Sign up with email, password, username, birth date, and gender. Then tap the settings button on you phone. Tap "ajustes (settings)". From there scroll to "applicacion" and click "seleccion de lenguaje."]
Also, for the big games, I plan on going to a local Irish Pub that plays ALL of the matches. Also, they don't care if you just sit there and drink water, as long as you tip a little bit. There might be a similar place in your neck of the woods.