Sorry haven't figured out how to embed video on site. Please someone share how to do it

Original URL is http://www.youtube.com/watch?v=TBSt1...yer_detailpage

Uggh, why does this not work!!!!
http://<a href="http://www.youtube.c...nt></span></a>

or this

http://<a href="http://www.youtube.c...EOk</font></a>