Sonarr/UI/Calendar/UpcomingItemTemplate.html

<div class="event">
    <div class="date {{StatusLevel}}">
        <h1>{{Day airDateUtc}}</h1>
        <h4>{{Month airDateUtc}}</h4>
    </div>
    {{#with series}}
    <a href="{{route}}">
        <h4>{{title}}</h4>
    </a>
    {{/with}}
    <p>{{StartTime airDateUtc}} {{ShortDate airDateUtc}}<span class="pull-right">{{seasonNumber}}x{{Pad2 episodeNumber}}</span><br>{{episodeTitle}}</p>
    <p class="episode-title x-episode-title">{{title}}</p>
</div>