Hi, I’m in the same boat as di_aeiou. Youtube links are displaying in excerpts which look ugly. The fix for this is commented out in td_util.php and seems to work for us:

$post_content = preg_replace('~(?:http|https|)(?::\/\/|)(?:www.|)(?:youtu\.be\/|youtube\.com(?:\/embed\/|\/v\/|\/watch\?v=|\/ytscreeningroom\?v=|\/feeds\/api\/videos\/|\/user\S*[^\w\-\s]|\S*[^\w\-\s]))([\w\-]{11})[a-z0-9;:@?&%=+\/\$_.-]*~i', '', $post_content);

Unfortunately there doesn’t appear to be a way to implement it in a child theme.