Radarr/UI/Series/Index/EmptyTemplate.html

<div class="row">
    <div class="well span11">
        <i class="icon-comment"/>
        You must be new around here, You should add some series.
    </div>
</div>
<div class="row span3 offset4">
    <a href="/addseries" class='btn btn-large btn-block btn-success x-add-series'>
        <i class='icon-nd-add'></i>
        Add Series
    </a>
</div>