I love this show. To me it's the best sitcom to come out of the states in years (sitcom in the classical sense of a live television audience and all). It's smart and funny while riddled with enough nerd jokes to keep even my most geeky of friends happy. I've seen every episode so far and yes give the show a chance it gets funnier.
I also have to admit I like the show because it reminds me of when I'm hanging out with my own friends who are also into science, video games, comics and being ridiculously awkward around women (not me...them

).
And yes it's with the kid from Rosanne and if you stick with the show you will notice a few other ex Rosanne players like the girl who played Darlene as a fling of the main character and the woman who played Jackie plays one of the characters very Christian mothers (while the son himself is an atheist).
-Curt
Wer mich beleidigt, entscheide ich.-Klaus Kinski