Compartenos la línea de la etiqueta html(<html>) y head(<head>).
Saludos.
Supongo que te refieres a esto
<html lang="es-ES" prefix="og: http://ogp.me/ns#"><!--<![endif]-->
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>">
<title><?php global $page, $paged;
wp_title( '-', true, 'right' );
bloginfo( 'name' );
$site_description = get_bloginfo( 'description', 'display' );
if ( $site_description && ( is_home() || is_front_page() ) )
echo " - $site_description";
if ( $paged >= 2 || $page >= 2 )
echo ' - ' . sprintf( __( 'Pagina %s'), max( $paged, $page ) ); ?></title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<!-- Estilos -->
<link rel="stylesheet" href="<?php bloginfo('stylesheet_url'); ?>">
<?php wp_head(); ?>
<?php
global $post;
if(is_single() and get_post_meta($post->ID,'_videofile',true)!=''){
?>
<script>
videojs.options.flash.swf = "<?php echo get_template_directory_uri(); ?>/inc/reproductor/video-js.swf";
</script>
<?php } ?>
<!-- Compatibilidad para navegadores antiguos -->
<!--[if lte IE 9]><link rel="stylesheet" href="<?php echo get_template_directory_uri(); ?>/css/ie.css"><![endif]-->
<!--[if lt IE 9]><script src="<?php echo get_template_directory_uri(); ?>/js/lib/html5.js"></script><![endif]-->
<!--<script src="<?php echo get_template_directory_uri(); ?>/js/prefix.js"></script>-->
</head>