Seems at some point Hulu added a new batch of episodes of this show. I'm watching the first episode of the second season now and found this. Zou and one his friends are playing knights, with Zou's grandpa as a wizard. They're pretending to sneak past a dragon, which is actually Zou's bird, Poc, but the grandpa sneezes, waking the "dragon." Happens around 5:02.
The show airs on Sprout in the United States.
Hulu - https://www.hulu.com/watch/949268?d=Gracenote
I haven't been able to find any other video and since I don't know if it's possible for anyone here to download stuff from Hulu, I'll mark this as "unlocated" for now.