Youtube in Wall

Is there any way without buying a mod (cant afford one) that when I post on a wall and I post a link to a youtube video it actualy feches and displays the video on the wall just like it does on facebook. I Tried this last night br writing to my own wall in dolphin using the post to wall on my profile page and selected and selecting share link I pasted the youtube video link and hit the submit buton, the link was posted to my wall but no video just the link. I want posting of you tube video links on walls and profile status messages to work exactly the same as it does on facebook to actualy fect the video and display it