I don’t know the show Eureka, but the other show you mentioned is deservedly only good for 80’s trivia night.
OMG, you are missing a treat! It is on SyFy and is about a town that has super-duper geniuses who are pushing the edge of science -- basically light years ahead of what we are using now but what could be used any day. The main character is an average Joe who is more clever than the rest of the town is are smart and spends every episode saving the town from the latest invention which will destroy the world/solar system/universe/etc.
It is funny (extremely at times), yet serious (extremely at times) -- one of the best shows ever.
And the main characters are all extremely good looking ;)