Thundercats Roar - We have ourselves to blame

Actually, no, it wasn't cancelled because nobody watched it, it was cancelled because another studio offered another, similar cartoon for a much lower cost, so the network went with that instead.
I forget the name of the cheaper cartoon, though.

I think it was LEGO's Legend of Chima.

So either Arin wasn't aware, or was (more likely, if you ask me) talking out of his ass again.