I've been DL the Roy Buchanon dvd for a while now. Since this new paskey deal began I noticed my torrent was still downloading in Utorrent but on Traders den /Buchanon thread I was not showing up. Utorrent said there were sixty peers but only five were showing on the Buchanon peers list.

My torrent file was showing a red arrow (again using Utorrent) I updated it by right clicking my torrent file>select "update tracker" and now I'm showing up on the Buchanon peers list and my dl arrow is blue again.

An example of how easy Utorrent is (never had to delete and restart the file, just one-click and update)

So to simplify if your downloading a show and not showing up in the peers list and your using Utorrent...
right click on your torrent file>select "update tracker" that's it

Hope that helps.