custom post meta

I seem to be having issues with custom post meta when I input html into it.

I’m trying to add youtube code to embed per custom post kind of like an image tied to the post here is the code:

<iframe title="YouTube video player" width="560" height="349" src="https://www.youtube.com/embed/ytW-DO05vdM" frameborder="0" allowfullscreen></iframe>

I’m assuming I’m not escaping characters somewhere?
but it ends up doing this:
https://localhostr.com/files/qaYpxBE/Picture+5.jpg

here is my functions php file:

<?php
add_action('init', 'package_register');

function package_register() {
	$args = array(
    	'label' => __('packages'),
    	'singular_label' => __('package'),
    	'public' => true,
    	'show_ui' => true,
    	'capability_type' => 'post',
    	'hierarchical' => false,
    	'rewrite' => true,
    	'supports' => array('title', 'editor', 'thumbnail')
    );

	register_post_type( 'package' , $args );
}
	add_action("admin_init", "admin_init");
	add_action('save_post', 'save_embed');

	function admin_init(){
		add_meta_box("prodInfo-meta", "package Options", "meta_options", "package", "side", "low");
	}

	function meta_options(){
		global $post;
		$custom = get_post_custom($post->ID);
		$embed = $custom["embed"][0];
		echo '<img src="https://www.discountslideshows.com/wp-content/themes/slideshow/images/vimeo.png"><br /><label>embed:</label><input type="text" name="embed" value="'. $embed .'" />';
	}

function save_embed(){
	if(isset($_POST["date"]))
	update_post_meta($post->ID, “horario”, $_POST["date"]);
	global $post;
	update_post_meta($post->ID, "embed", $_POST["embed"]);
}
// custom table columns
register_taxonomy("catalog", array("package"), array("hierarchical" => true, "label" => "Catalogs", "singular_label" => "Catalog", "rewrite" => true));

if ( function_exists('register_sidebar') )
register_sidebar( array(
	'name' => __( 'Primary Widget Area', 'twentyten' ),
	'id' => 'primary-widget-area',
	'description' => __( 'The primary widget area', 'twentyten' ),
	'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
	'after_widget' => '</li>',
	'before_title' => '<h3 class="widget-title">',
	'after_title' => '</h3>',
) );

?>