challenge for computer savy folks

I have a popular youtube channel where I wish to keep my identity secret. However, I want to start a few new channels, one for Tacomas and outdoor stuff and some other ones too.
I have read that when you create multiple channels from a single account that people shouldn't be able to know which ones are linked together.
So here is the challenge...I am posting a video from a new account I made. Its linked to my other channel but you "shouldn't" be able to determine what other channel I have.
If anyone can figure it out you win a prize.

Here is my test video on new account.

https://www.youtube.com/watch?v=Lagmi_hMSqU&list=UUEb0Mt-nTkWvMz6bWcWPGsQ

 

bump. someone do me a favor here. I'd really appreciate it