--- a/schema.org/ext/tvradio.html	Thu Oct 17 17:59:54 2013 +0200
+++ b/schema.org/ext/tvradio.html	Mon Oct 21 14:40:22 2013 +1100
@@ -118,7 +118,7 @@
     <div typeof="rdf:Property" resource="http://schema.org/startDate">
       <span class="h" property="rdfs:label">start date</span>
       <!-- More precise description of the property -->
-      <span property="rdfs:comment">First original publication of an episode within that series or season.</span>
+      <span property="rdfs:comment">The first time that the initial episode of the Series or Season is broadcast.</span>
       <span>Domain: <a property="http://schema.org/domain" href="http://schema.org/Series">Series</a></span>
       <span>Domain: <a property="http://schema.org/domain" href="http://schema.org/Season">Season</a></span>
       <span>Range: <a property="http://schema.org/range" href="http://schema.org/Date">Date</a></span>
@@ -127,7 +127,7 @@
     <div typeof="rdf:Property" resource="http://schema.org/endDate">
       <span class="h" property="rdfs:label">end date</span>
       <!-- More precise description of the property -->
-      <span property="rdfs:comment">Last original publication of an episode within that series or season</span>
+      <span property="rdfs:comment">The last time that the final episode of the Series or Season is broadcast.</span>
       <span>Domain: <a property="http://schema.org/domain" href="http://schema.org/Series">Series</a></span>
       <span>Domain: <a property="http://schema.org/domain" href="http://schema.org/Season">Season</a></span>
       <span>Range: <a property="http://schema.org/range" href="http://schema.org/Date">Date</a></span>