Purchased Sanyo DP52440. The bottom of the TV speaker section is thiner at the ends then the middle. I saw one in WalMart and the speaker section is the same width all across the bottom. Are there two different styles for this TV? I called Sanyo and they advised I was seeing things (if so then my wife and the TV sales person in WalMart was also seeing things). Question is are there two different styles for this model and if so which is the latest model.