Syfy's website has the details on its support for Alexa:
Alexa has exhaustive knowledge of Syfy's schedule as far out as 14 days in the future. Plan your schedule and never miss the next episode of your favorite Syfy shows. Alexa knows everything about the most recent episodes of current Syfy shows. If you need a quick refresher, just ask her what happened and Alexa will give you the lowdown. Alexa can see into the future! Alexa is prepared to give you a quick sneak peek on the next episode of your favorite Syfy shows, all you have to do is ask!