No, but you could easily make your HTPC the MC Server, and save all your media, including recorded TV, onto the main "media server PC", which would then be acting as a more traditional file server.
Of course, both the HTPC and the main "media server PC" would need to be running in order for TV recordings to work, or any other MC activity. So if you sleep the HTPC it will wake for TV recordings, but you will need to either leave the main "media server PC" always turned on, or have a way to wake the main "media server PC", quickly, when the HTPC wakes.