Display Share, a new piece of software from Golden Signals could mean the end of video encoding issues. The software streams your PC desktop to your TV via the PS3. It all sounds very simple, just load up the program and you'll see your PC available under the Video section of your XMB. This means no more having to encode video in a PS3 compatible codec, or fiddling around with subtitle files.
Display Share will set you back $50 and is currently only available for PC, though a Mac version is apparently in the works. Gaming is not recommended due to a substantial amount of lag, though this causes no problems for video files. It sounds like a decent application, even if the price tag is a little high. For anime fans looking for a solution to the PS3's lack of .mkv support, however, it could be a God-send.
[Via Ars Technica