@classmethod
def premieres(cls, date=None, days=None):
    """
        Returns all shows premiering during the time period specified.

        :param date: Start date for the calendar. (today)
        :param days: Number of days to display starting from the date. (7)
        """
    if date:
        date = date.strftime('%Y%m%d')
    else:
        days = None
    return cls._get('calendar/premieres', date, days)
