--- a/schema.org/ext/tvradio.html	Wed Dec 12 12:10:23 2012 +0000
+++ b/schema.org/ext/tvradio.html	Wed Dec 12 12:18:00 2012 +0000
@@ -204,6 +204,13 @@
       <span>Range: <a property="http://schema.org/range" href="http://schema.org/Organization">Organization</a></span>
     </div>
 
+    <div typeof="rdf:Property" resource="http://schema.org/logo">
+      <span class="h" property="rdfs:label">logo</span>
+      <span property="rdfs:comment">A logo associated with an organization.</span>
+      <span>Domain: <a property="http://schema.org/domain" href="http://schema.org/Organization">Organization</a></span>
+      <span>Range: <a property="http://schema.org/range" href="http://schema.org/URL">URL</a></span>
+    </div>
+
     <div typeof="rdfs:Class" resource="http://schema.org/PublicationEvent">
       <span class="h" property="rdfs:label">Publication event</span>
       <span property="rdfs:comment">A publication of a program, e.g. a broadcast event or an on-demand event.</span>
@@ -238,6 +245,16 @@
       <span>Range: <a property="http://schema.org/range" href="http://schema.org/PublicationEvent">PublicationEvent</a></span>
    </div>
 
+    <div typeof="rdf:Property" resource="http://schema.org/instantiates">
+      <!-- inverse of the publication property - needed? -->
+      <span class="h" property="rdfs:label">instantiates</span>
+      <span property="rdfs:comment">An episode, clip or media object associated with the publication event.</span>
+      <span>Domain: <a property="http://schema.org/domain" href="http://schema.org/PublicationEvent">PublicationEvent</a></span>
+      <span>Range: <a property="http://schema.org/range" href="http://schema.org/Episode">Episode</a></span>
+      <span>Range: <a property="http://schema.org/range" href="http://schema.org/Clip">Clip</a></span>
+      <span>Range: <a property="http://schema.org/range" href="http://schema.org/MediaObject">MediaObject</a></span>
+    </div>
+
     <div typeof="rdf:Property" resource="http://schema.org/publishedOn">
       <span class="h" property="rdfs:label">published on</span>
       <span property="rdfs:comment">A broadcast service associated with the publication event</span>