Was the World Series still going at 10pm though? I don’t follow sports (and being in a different country I don’t have a clue) but according to all the ratings tables I’ve seen, the World Series wasn’t a competition in the 10pm slot.
Apparently the game lasted about 4 hours, and they even started the game early at 7:08pm ET due to the weather forecast, so it didn’t end until after 11pm: http://www.sportingnews.com/mlb/news/world-series-2016-cubs-indians-game-2-four-hours-pace-of-play-kris-bryant-trevor-bauer/i2gia5nwmjlh1rsfthu2obg59
Something that also isn’t in Designated Survivor’s favor is that it took off last week for the Presidential debate, and it’s taking next week off as well for the CMA Awards. On and off scheduling like that does no drama shows any favors.