I have a 2012 or 2013 Panasonic Viera TV. I had/have an older WD External Hard Drive, the TV read it just fine... I believe it is a windows formatted drive though, and I have that old app that lets you write to windows drives, i forget the name of it.... Whenever I plugged this drive into the TVs USB, I was able to use the media player on the TV, and play audio and video files stored on the drive. Anyway, I just got a new WD My Book Studio. It's the USB2/Firewire model (one model previous to the USB3 studio drives currently on the market) and is formatted for mac. It works fine, but when I plug it into the TV, and open up the media player, it is not seeing the drive. Anyone know what the story is with this? Do Panasonic TVs not read OSX Formatted HDDs??