Sonarr/UI/Settings/Misc/MiscTemplate.html

<fieldset>
    <legend>Misc</legend>

    <div class="control-group">
        <label class="control-label">Backlog Searching</label>

        <div class="controls">
            <label class="checkbox toggle well">
                <input type="checkbox" name="enableBacklogSearching"/>
                <p>
                    <span>Yes</span>
                    <span>No</span>
                </p>

                <div class="btn btn-primary slide-button"/>
            </label>

            <span class="help-inline-checkbox">
                <i class="icon-question-sign" title="Should NzbDrone try to download missing episodes automatically?"/>
                <i class="icon-exclamation-sign danger" title="Enabling backlog searching can use a lot of bandwidth and is not
                                                     recommended for users with block usenet accounts or bandwidth restrictions."/>
            </span>
        </div>
    </div>

    <div class="control-group">
        <label class="control-label">Ignore Deleted Episodes</label>

        <div class="controls">
            <label class="checkbox toggle well">
                <input type="checkbox" name="autoIgnorePreviouslyDownloadedEpisodes"/>
                <p>
                    <span>Yes</span>
                    <span>No</span>
                </p>

                <div class="btn btn-primary slide-button"/>
            </label>

            <span class="help-inline-checkbox">
                <i class="icon-question-sign" title="Episodes deleted from disk are automatically ignored in NzbDrone"/>
            </span>
        </div>
    </div>

    <div class="control-group">
        <label class="control-label">Nzb Restrictions</label>

        <div class="controls">
            <textarea rows="3" name="nzbRestrictions" class="nzb-restrictions"></textarea>
            <span class="help-inline">
                <i class="icon-question-sign" title="Blacklist NZBs based on these words (case-insensitive)"/>
            </span>
            <span class="text-area-help">Newline-delimited set of rules</span>
        </div>
    </div>
</fieldset>