VDR is one of the most popular and power Linux-based front-end for the HTPC. It has a cleaver architecture and a lot of plugins. Using streamdev-server it’s possible to stream live TV over LAN. As client you can any PC with installed VideoLAN or mplayer. But in that case some functionality will be lost. Here is a way how to use Mac with Mac OS as streamdev client. I suspect that it’s the first step to port VDR under Mac OS. As there are no DVB device drivers for OS X with Linux headers you cannot use DVB devices on Mac. But you can enjoy full-featured VDR client on your Mac (thanks to Tero Siironen).