We were on the Fantasy last year to watch my Mets lose in the WS.
They had the games on the stateroom TVs. In the Pub, we had to specifically request it and the bartender made it happen twice, but it wasn't a simple thing. They had to call some Tech guy to come do it for them and it took quite a bit of time. One of the nights we went to the Pub rather than staying in our room was a game that was on at the same time as a few NFL games so that was what made it especially tricky. They put the WS on only the two small TVs behind the bar on the NFL night, another night we got one of the big screen. So it's not a definite that it'll be on in the pubs, but it always seemed to air in the staterooms, regardless of channel. The pub also had a daily game schedule and it never mentioned the WS, but if you ask they try their hardest to make it happen, but they don't have full control of what airs in the Pub. I expected them to put the WS on the big screen but it never happened. Only NFL games. I also was surprised the second night in the pub when we had to request it and their was not any NFL games, only international soccer & it was still a big to do to see the games.
I will be at WDW during the WS but I will not have to worry about seeing the games.