The official Pokémon movie website has updated. Translations follow:
Media Information
Tv Shows:
Sunday August 20th: "The Pocket Monsters Anime Premium 10" on TV Tokyo - Video Message (from Asuca Hayashi)
Sunday August 20th: "Pokémon no Uchi Atsumaru?" on the TV Tokyo Network - Presentation of the movie during "Abareru-kun's Trade Journey"
Sunday August 27th: "The Pocket Monsters Anime Premium 10" on TV Tokyo - Video Message (from Shoko Nakagawa)
Sunday August 27th: "Pokémon no Uchi Atsumaru?" on the TV Tokyo Network - Presentation of the movie during "Abareru-kun's Trade Journey"
*Note that these are the scheduled publication dates/air dates, and as such are subject to change without notice.
*Broadcast dates will vary depending on where you live. (some areas exempt)
For details, please see the website of your local TV station.
Source:
http://www.pokemon-movie.jp/news/?p=3126