code: def EpisodeNameLookUp(self, showName, season, episode):
      
      goodlogging.Log.Info("EPGUIDE", "Looking up episode name for {0} S{1}E{2}".format(showName, season, episode), verbosity=self.logVerbosity)
      goodlogging.Log.IncreaseIndent()
      showID = self._GetShowID(showName)
      if showID is not None:
        try:
          self._showInfoDict[showID]
        except KeyError:
          goodlogging.Log.Info("EPGUIDE", "Looking up info for new show: {0}(ID:{1})".format(showName, showID), verbosity=self.logVerbosity)
          urlData = util.WebLookup(self.EPISODE_LOOKUP_URL, {self.EP_LOOKUP_TAG: showID})
          self._showInfoDict[showID] = self._ExtractDataFromShowHtml(urlData)
        else:
          goodlogging.Log.Info("EPGUIDE", "Reusing show info previous obtained for: {0}({1})".format(showName, showID), verbosity=self.logVerbosity)
        finally:
          episodeName = self._GetEpisodeName(showID, season, episode)
          goodlogging.Log.DecreaseIndent()
          return episodeName
      goodlogging.Log.DecreaseIndent()
docs: Get the episode name correspondng to the given show name, season number
      and episode number.
  
      Parameters
      ----------
        showName : string
          Name of TV show. This must match an entry in the epguides
          title list (this can be achieved by calling ShowNameLookUp first).
  
        season : int
          Season number.
  
        epiosde : int
          Epiosde number.
  
      Returns
      ----------
        string or None
          If an episode name can be found it is returned, otherwise the return
          value is None.