I did some searching and I believe this episode will air again on Christmas day at 7pm on TLC. I have not seen the episode so I could be wrong, so feel free to correct me if I am. I basically pieced a couple things together to arrive at this episode from the listings on TLC.com.
I believe this is the description of the episode with the CFer, but I am not 100% sure.
Yoji's been bulking up with workouts and weight gainer to combat Ami's bullying. And when mixed martial arts fighter, Paul Buentello offers to help him train, Yoji's in for a serious beat down in the ring.