There are some great guides on how to share recorded TV between Media Center PCs that walk you through setting up the shares and permissions. I didn't know that MVP Doug Knox has developed a tool to take care of all the hard work for you. So Doug has very kindly allowed me to host the download on TheDigitalLifestyle.com

Due to the whole host of software that can block sharing the application is not supported but Doug would appreciate your feedback to feedback@dougknox.com

Download from HERE and please send Doug your feedback

BTW Its not been tested on Vista yet