This site (gatotv) is not parsing all the data from the webpage, it is not removing all the html tags from the original site.
I am using the latest version of wg++ (3.0.2), running on Mac OS High Sierra.
This example is extracted from the resulting guide.xml. As you can see, it is not removing some html tags:
<programme start="20200506140000 -0500" stop="20200506143000 -0500" channel="Canal Telesistema 11 (República Dominicana)">
<title lang="es">Los Simpson</h1></td>
</tr>
<tr style="vertical-align:top;">
<td class="tbl_EPG_th">
<div style="width:160px; margin-bottom:3px;">
<a href="https://www.gatotv.com/programa/los_simpson/poster">
<img itemprop="image" class="img_program" src="https://imagenes.gatotv.com/categorias/programas/los_simpson.png" width="160" height="240" alt="Los Simpson" title="Los Simpson" />
Ver Poster
</a>
</div>
</td>
<td class="td_basic_info">
<div>
<span itemprop="dtreviewed" datetime="2013-02-10"><a class="a_year" href="https://www.gatotv.com/programas/ano/1989" ><span itemprop="copyrightYear">1989</span></a></span>
<span itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
<meta itemprop="worstRating" content="1" />
<meta itemprop="ratingValue" content="9" />
<meta itemprop="bestRating" content="10" />
<img title="9/10" alt="9/10" src="https://imagenes.gatotv.com/half_stars_9.png" />
</span>
<strong>en</strong> <a itemprop="author" itemscope itemtype="http://schema.org/WebSite" href="https://www.gatotv.com/"><span</title>
<desc lang="es">Una parodia satírica que cuenta las aventuras de los famosos personajes Homero, Marge, Bart, Lisa y Maggie de Springfield.(n)</desc>
<date>1989</date>
<category lang="es">Comedia</category>
<category lang="es">Caricatura</category>
<category lang="es">Programa</category>
<category lang="es">Serie</category>
<icon src="https://imagenes.gatotv.com/categorias/programas/miniatura/los_simpson.png" />
</programme>
i see you disabled some lines, try to reenable them