In order to even qualify for this list, a company has to have over 1/3 of their total sales outside of their home country; this is a global list you know. The list evaluates brands on not how much they are making now, but rather, how much they are projected to earn in the future. Samsung came out on top of the audio/video business at number 20 based on their LCD and memory chip business. Sony then followed at 26, Philips at 48, Panasonic at 77, and LG rounding out the list at 94.
Everyone has their own perception of a certain brand. Do you think that Samsung's brand has reached Sony's level? Business Week sure thinks that they are going to do more with that name.