There is a show on G4 network at 8:00 Friday morning about geocaching. Show is called Call For Help. Subject is Treasuring Hunting with a GPS. I've never watched the show or the network before, so I can't vouch for the quality. It's channel 191 on Dish Network.
Here is a link to their web page. They even include a link to Geocaching.com.
http://www.g4tv.com/callforhelp/episode ... sers_.html