CBS' "B Positive" Gets a B-Minus So Far

As Paula Abdul once asserted through song and dance, opposites attract. That concept tends to pop up in pretty much every form of American entertainment, especially on television, where shows from The Odd Couple to Bob Hearts Abishola have done the whole "it works because they're different" bit, and it's usually a guaranteed crowd pleaser. But the new CBS sitcom B Positive, which virtually spins around that notion, could be an exception.