Fire Core has released version 4.1 of its aTV Flash software utility package for the Apple TV. aTV Flash allows users to install a number of different software packages—including the Couch Surfer Pro web browser, a RSS feed reader, and support for a much broader set of media formats—on their Apple TV units using a USB flash drive. New in version 4.1 is full 5.1 surround sound support for nearly all media types, including DVD (VIDEO_TS)…