As with all things, nothing is simple! The BV3-28 , as said above, is based on he MX/BV1 chassis. The sound is not so good and the 28" model was actually used as a draw model to attract people into stores. I remember Caitin Moran doing an article on it - she was excited about a cheap beovision, but by the time it was specced to a reasonable level, it wasn't that cheap!I therefore concur with the advice that the BV3-32 is the one to get.
However do remember that 100Hz sets add a level of manipulation to the picture and some people are quite sensitive to this. In some ways the earlier sets by B&O offer better pictures - the old 3400 has colour rendition that is simply gorgeous - the 8800 series also has pictures that make the present range look appalling. Of course the lack of connections and the old format preclude a recommendation along with the fact that the 3400 would more than likely burn your house down, if you could find one that worked!