BW094 - Bulbapedia, the community-driven Pokémon encyclopedia
This episode aired first in the UK on the 28th December. Those in the UK can watch it on the ITV player.
Samurott is the WTP. Marlon gets some "hip/surfer" lines that will make you cringe. Especially the "Trainer after my heart" line.
Oh, and for what seems the entire last half of the episode all the music was replaced. I don't know about the first half, but the last half came off really bad.