And i have found that other videos such as CNN while will not work with just the url, can be added by clicking the html tab on tinymce editor and pasting the embed code into the html. Did one from CNN that way today.

Another slick trick is to use the WP Plugin Hanna Code Insert: http://wordpress.org/extend/plugins/problem-with-post-edit-buttonana-code-insert/

Past your code and copy the short code into your simple press post. Good for embedding PP Donate Buttons, Google Map Code, etc.

yup, all work as long as the embedded code doesnt use iframes… you dont want your users with the ability to post iframes… if you really, really want that, you can filter the kses allowed html tags and add it, but do so at your own risk…