Pokemon Sun and Moon first two episodes are released and aired in Japan last November 17, 2016 in TV Tokyo just before the game.
It seems many Pokemon fans didn't enjoy the new adaptation and different style of art style but on the other hand, some are expecting a better series with the participation of Disney.
The schedule of the sneak peak of the first two episode will be in December 5, 2016 in U.S., while in U.K. they will get the sneak peak in November 20, 2016.
If you cannot wait for the english subtitle, you can find a lot on youtube now. But for sure this will not last for long as it will be removed by youtube.