I've only just discovered the RSS feed concept so want to start pushing it out. I entered my shortcode to see what the URL was anf it's http://www.whatsoncardiff.net/events/rss/ . This however times out if you put it into the address bar. I checked the feed at http://www.rssboard.org/rss-validator/docs/error/HttpError.html and have the following error:
Your feed couldn't be validated because there was a problem downloading it from the web server. You should try to diagnose this using a web browser, and make sure that the URL you supplied resolves to an accessible file.
This usually means that the URL was wrong, or that permissions on the server don't allow us to fetch that file. The error shows the message that the server sent, which may help.
Make sure this URL can be downloaded with a browser, then try again."
I remember seeing the feed many months ago as it was feeding through to a blogging platform, but annoying as duplcate events were coming out hundreds of times. Anyway - can't think anything has changed since then. Now there is nothing.