Probably whatever wordpress plugin Dave uses stopped working. I think he complained about Youtube suspending his API keys, somewhere? @eevblog: In case you want to write your own and not rely on any APIs: the
youtube-provided rss-feed returns your last 15 videos. I haven't written PHP in ages, but extracting the video id from that is fairly easy:
<?php
$xml = file_get_contents("https://www.youtube.com/feeds/videos.xml?channel_id=UC2DjFE7Xf11URZqWBigcVOQ");
$xmldata = simplexml_load_string($xml);
$id = $xmldata->entry[0]->children("https://www.youtube.com/xml/schemas/2015")->videoId;
echo '<iframe src="https://www.youtube.com/embed/'.$id.'"></iframe>';
caching is left as an exercise for the reader