having narrowed down my options i am now on the point of buying the sony,having never had an lcd its unknown territory but the pioneer 50" is to much money is there any problems like motion probs with this tv.after a glowing report by what hi-fi mag i persume that earlier probs have been soughted with earlier models any advice would be much appreciated having owned and still do a 43 inch pioneer plasma i hope i am making a good choice.