River monsters mermaid episode to come?

[Mermaid Momo]

Okay, while I was upstairs in my room today , my mom and dad yelled up to me about a commercial I just missed about the show River Monsters. The commercial was for the new season coming up and apparently there was a mermaid in it! I just questioned my mom about it (trying to get out of her every little detail) and she says it was a video shot by someone else, of a mermaid sitting on a rock (the filmed was above it) and she said it slid off of the rock Into the water and you saw its tail and ten she says the filmed said " WHAT THE F*CK?!" And then they alternated the video to the host catching fish and talking about fish. I still haven't had the chance to see this commercial, and my mom and dad didn't catch an air date, but I'm looking for a video anywhere on the Internet.

also, sorry about typos, im on my phone right now and I'm typing really fast so that I don't forget any information

EDIT: just realize I put this in the wrong place.