I just had a quick play at the 'A Town Called Eureka' Facebook application as I had a gentle nudge by the PR company.
The series is great I must say (Currently showing on Scifi Channel and now out on DVD), but I am a little dissapointed by the application. I am sure that a little more creativity could be used by the team who generated this, which at the end of the day is a simple general knowledge quiz.

I must admit I had my ego stroked with the result:

You are a "Brain Box"!
Eureka! Brain Box! Your fellow geniuses await you in A Town Called Eureka!

The application can be added here:
http://apps.facebook.com/eurekatown/