Fictional Farnsworth device on TV show

[rld-tv01]

I am always searching for new TV related information which appears on the web. Recently I have been getting a fair amount of web hits on The Farnsworth Portable communications device which is used on the TV show Warehouse 13. I don't have cable so I haven't seen the show. What thoughts do you have on a TV show using a real inventor like Farnsworth and attributing fictional inventions as his. Does this blur history or add amunition to RCA argument against Farnsworth? Or does this just make a great TV show?

Wiki definition
http://warehouse13.wikia.com/wiki/Farnsworth

Site describing how to build your own Farnsworth prop.
http://www.lane-collett.net/projects...arnsworth.html

There are also blueprints for sale on eBay and elsewhere. Why are the eBay prices $14.95 BIN while other sites like Amazon selling for $9.95?