first of all you have to get the id of the video using $_GET from the user.
You can do something like this:

$id = $_GET['videoid'];
$sql = "SELECT * FROM table WHERE id={$id}";
$query = mysql_query($sql);
while($result = mysql_fetch_array($query)){
echo $result['id'] . $result['videolink'] . $result['videotitle']
}