Return a list containing all unique show names from tvfile.TVFile object
    list.

    Parameters
    ----------
      tvFileList : list
        List of tvfile.TVFile objects.

    Returns
    ----------
      set
        The set of show names from the tvfile.TVFile list.

def _GetUniqueFileShowNames(self, tvFileList):
    """
    Return a list containing all unique show names from tvfile.TVFile object
    list.

    Parameters
    ----------
      tvFileList : list
        List of tvfile.TVFile objects.

    Returns
    ----------
      set
        The set of show names from the tvfile.TVFile list.
    """
    showNameList = [tvFile.fileInfo.showName for tvFile in tvFileList]
    return(set(showNameList))