I do not recommend watching this show at all. I especially recommend against watching it with your kids, especially if your kid is sitting on the couch holding her favorite otter toy.
This is definitely not a "Disney Nature" or "Wild America" type nature show. If you're expecting a show about the lives of otters, you've come to the wrong show.
First scenes...otters killing and eating fish. Yes, it's what happens, Yes, it's natural...but showing it in all it's bloody, bone-crunching, flesh-ripping detail is not suitable material for what's billed as a children's show.
Next up...a guy going out to set snap traps for otters and talking about how horrible they are and how they have to be exterminated! Is this a nature show about endangered otters or a snuff film?
Maybe the rest was wonderful, but that this point, it got shut off.
I thought the production values were cheap, the camera angles were poor and herky-jerky, and the sound editing (like emphasizing the crunching of bones in the fish-eating scene) was unrealistic.
You'll be better off watching something like "Ocean Mysteries - Otterly Delightful" (http://smile.amazon.com/gp/product/B00IP9X9HE/ref=dv_dp_ep11)...at the very least your kids won't have to deal with people setting snap traps to kill otters.