I'm unable to reliably search for pages created by a Transporter. We need to add some more Metadata fields to the wiki-page-json to enable this.
As an experiment I added a "metadata" element to the json formed using the transporter:
{"metadata":{"author":"CCC Transporter"}
The following grep expression finds these pages uniquely from the JSON:
JSON \"author\"\: \"CCC Transporter"
On this page we try to grep for all the videos created using the CCC-TV Transport:
This Transport allows you to create a fedwiki ghost page from the data displayed on CCC-TV site - media.ccc.de 
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We use this term to describe the JSON returned when a new wiki-page is fetched from the server.