Distributed Video Systems Under Linux?

Second_Derivative asks: "One of the projects that I've undertaken in our new home is installing a LAN, and in turn this has spawned a whole slew of subprojects, one of them being apparently trivial but one that I can find no existing solutions for. I have a server up in my loft which does all the usual stuff (NAT, 40Gb hard disk, etc). I've installed a WinTV (Linux BTTV compatible) card in this and wired our cable TV into it. The idea is as follows: from any computer in the house you can just connect to the server and view whatever channel you want or view a previously recorded program off the hard disk. However, despite doing plenty of searching all I could find was this which fits my needs perfectly except for one little detail: it's only a research proposal. Anyone know of a ready-made solution for this? I'm sure I'm not the only one who's after it; it needs to stream TV with some minor compression (my LAN is 100MBps) but the client also needs to be able to control the tuner and tell the server to record to disk."