Nope thats not what I meant to say.
3Speak video you need to upload. In case you want to share your YT like you did with this post, but part of your 3Speak post, add the YT URL into the text part of your 3Speak post. I would not share a 3Speak and an additional post with the YT link. Thats is spammy by nature and totally unnesesary.