load files required for the lesson</td>
  </tr>
  {% for lesson_episode in lesson_episodes %}
    {% if site.episode_order %}
      {% assign episode = site.episodes | where: "slug", lesson_episode | first %}
    {% else %}
      {% assign episode = lesson_episode %}
    {% endif %}
    {% if episode.start %} {% comment %} Starting a new day? {% endcomment %}
      {% assign day = day | plus: 1 %}
      {% if day > 1 %} {% comment %} If about to start day 2 or later, show finishing time for previous day {% 