Hello Stephan,

Sorry for late reply to this,
May i have your FTP access so we can help you debug and check on this issues? (because we have turn on your Error_reporting to MAXIMUM just now and see the error where it come from) I'm sorry that make inconvenience to you.

details attached

Hello Stephan,

I'm sorry that late reply to you,
I have checked your side, why it caused the error out is because your blog post (Friday Night Live from The Love Ranch North 11/29/2013) have included the video source code like :

 {source}  <-- 

<iframe width="480" height="302" src="http://www.ustream.tv/embed/recorded/41224333?v=3&wmode=direct" scrolling="no" frameborder="0" style="border: 0px none transparent;"> </iframe>

<br /><a href="http://www.ustream.tv/" style="padding: 2px 0px 4px; width: 400px; background: #ffffff; display: block; color: #000000; font-weight: normal; font-size: 10px; text-decoration: underline; text-align: center;" target="_blank">Video streaming by Ustream</a>

{/source} <-- 

It should not be including this code {source} {/source} when you post a video, so i help you post it code like :

<iframe width="480" height="302" src="http://www.ustream.tv/embed/recorded/41224333?v=3&wmode=direct" scrolling="no" frameborder="0" style="border: 0px none transparent;"> </iframe>

<br /><a href="http://www.ustream.tv/" style="padding: 2px 0px 4px; width: 400px; background: #ffffff; display: block; color: #000000; font-weight: normal; font-size: 10px; text-decoration: underline; text-align: center;" target="_blank">Video streaming by Ustream</a>

And you should be set it Allow IFrames to YES from your JCE control panel ( http://screencast.com/t/xQOaArMTk ).
Please have a check in your side, it should be work everything fine.