def parse_episode(a):
    """Collects data related to an episode"""
    d = {}
    html = get_html(ROOT + a.get('href'))
    d['rating'] = get_rating(html)
    d['episode-name'], d['date'] = get_name_date(html)
    season, d['episode-num'] = get_season_epi_num(html)
    return season, d