Embedding videos was supported for YouTube videos only in the previous ProBoards versions. I think same is the case with the new one also.
My Birds My Foods & Supplements Always treat your pets as family members. We sent thee not, but as a Mercy for all creatures (Quran 21:107) There is no creature on [or within] the earth or bird that flies with its wings except [that they are] communities like you. We have not neglected in the Register a thing (Quran 6:38)