A Pokémon Battle Marathon will air on Cartoon Network in the United States on Saturday June 16th, 2012 from 11:00am until 3:00pm. Eight episodes of the latest series will air in addition to the new Rival Destinies episode Baffling the Bouffalant! which airs earlier in the morning at 8:30am. Below is the list of episodes that will air and at what time.

Time	Series	Episode
11:00am	Black and White	Battle Club And Tepig's Choice!
11:30am	Black and White	A Rival Battle for Club Champ!
12:00pm	Black and White	A Connoisseurer's Revenge!
12:30pm	Black and White	Battling For The Love of Bug-Types!
1:00pm	Black and White	Oshawott's Lost Scalchop!
1:30pm	Black and White	Club Battle Finale: A Hero's Outcome!
2:00pm	Rival Destinies	Enter Elesa, Electrifying Gym Leader!
2:30pm	Rival Destinies	Dazzling the Nimbasa Gym!

The commercial on Cartoon Network to advertise the 4-hour Pokémon Battle Marathon did have an error though as Emonga's voice was used for Pikachu. We've added the error to our episode notes. Below is the commercial.


Source: http://www.cartoonnetwork.com/schedule/index.html?atclk_gn=gn_link_tvschedule