Hi

Auf der Seite zu den TV-Episoden fand ich leider nichts, zum durch nummerieren^^

Also episodeNumber sieht eigentlich wie dafür geschaffen aus um Episoden durchzunummerieren.

Wie auch in den Beispielen (Microdata) ersichtlich:

<div itemscope itemtype="http://schema.org/TVSeries">
 <span itemprop="name">Greys Anatomy</span> is a medical drama television series created by
 <div  itemprop="author" itemscope itemtype="http://schema.org/Person">
   <span itemprop="name">Shonda Rimes</span>
 </div>
 Starring:
 <div itemprop="actor" itemscope itemtype="http://schema.org/Person">
   <span itemprop="name">Justin Chambers</span>
 </div>
 <div itemprop="actor" itemscope itemtype="http://schema.org/Person">
   <span itemprop="name">Jessica Capshaw</span>
 </div>
 <div itemprop="season" itemscope itemtype="http://schema.org/TVSeason">
   <span itemprop="name">Season 1</span> -
   <meta itemprop="numberOfEpisodes" content="14"/>
   <meta itemprop="datePublished" content="2005-05-22">May 22, 2005
 </div>
 <div itemprop="season" itemscope itemtype="http://schema.org/TVSeason">
   <span itemprop="name">Season 2</span> -
   <meta itemprop="numberOfEpisodes" content="27"/>
   <meta itemprop="datePublished" content="2006-05-14">May 14, 2006
   <div itemprop="episode" itemscope itemtype="http://schema.org/TVEpisode">
     <span itemprop="name">Episode 1</span> -
     <meta itemprop="episodeNumber" content="1"/>
   </div>
 </div>
</div>

Alternativ gibt es "position" innerhalb des itemscopes von "episode", wie man es im zweischen Beispiel (Microdata) sieht:

<div itemscope itemtype="http://schema.org/TVSeries">
  <a itemprop="url" href="http://www.bbc.co.uk/programmes/b006q2x0">
   <span itemprop="name">Doctor Who</span></a>,
  <div itemprop="season" itemscope itemtype="http://schema.org/TVSeason">
    <a itemprop="url" href="http://www.bbc.co.uk/programmes/b00rs69w">
     <span itemprop="name">Series 5</span></a>,
    <div itemprop="episode" itemscope itemtype="http://schema.org/TVEpisode">
      <a itemprop="url" href="http://www.bbc.co.uk/programmes/b00sj9sq">
       <span itemprop="name">The Hungry Earth</span></a>,
      episode <span itemprop="position">8</span>, broadcast on
      <div itemprop="publication" itemscope itemtype="http://schema.org/BroadcastEvent">
        <div itemprop="publishedOn" itemscope itemtype="http://schema.org/BroadcastService">
          <a itemprop="url" href="http://www.bbc.co.uk/bbcone"><span itemprop="name">BBC One</span></a>
        </div> at
        <span itemprop="startDate"
          content="2010-05-22T18:15:00+01:00">18:15, 22nd of May 2010</span>
      </div>,
      available on
      <div itemprop="video" itemscope itemtype="http://schema.org/VideoObject">
        <a itemprop="url" href="http://www.bbc.co.uk/iplayer/episode/b00sj9sq">BBC iPlayer</a>
      </div> from
      <div itemprop="publication" itemscope itemtype="http://schema.org/OnDemandEvent">
        <span itemprop="startDate"
         content="2012-06-02T19:45:00+01:00">19:45 on the 2nd of June</span> until the
        <span itemprop="endDate" content="2012-06-09T19:44:00+01:00">9th</span>.
      </div>
    </div>
  </div>
</div>

Gruß Ole