I'll preface my statement by saying that I don't watch much of CBS so the reality might be completely different from my perception.
I will say this though. Every time I flip to the channel or look at their primetime line up I think how strange it is that most (or all) of their comedies are 3 camera sitcoms complete with a laugh track and that almost (or all) their dramas are the old school non-serialized variety where it seems to reset every week. I know that there are some exceptions like "Person of Interest" and "Harper's Island" but those seem to serve as exceptions that prove the rule.
I know there are fans of CBS shows like "How I Met Your Mother" but the style of programming on that network seems like it hasn't evolved much since the 80's-90's. Thoughts?