Well I am closing with Heureka, this one I find extremely cool, except for the background-story. This one reminds me to much to the X-files. I really liked the X-files, but also there, I found everything better than the backgroundstory about the missing sister of Fox.
Generally I dislike the backgroundstories in all the American comedies, I think they are to set up and personally they don't touch me personally. But there were single stories, single episodes in the X-files, which were great, so of course, the X-files is not a comedy-serie. This also is valid for the backgroundstory in NCIS by the way.
The X-Files might be coming back. David is WAY on board but Gillian isn't returning anyone's calls.