... And the best thing is that you can easily turn any modern-day PC into a full-fledged DVR, by simply adding a TV tuner card. Windows Media Center 7 is undoubtedly the best DVR software available today, superior to Tivo and the likes, and including TV tuner support that lacks from XBMC, Boxee etc. Free program guides (unlike Tivo), artwork for TV programs, live TV recording, recording of individual shows or entire series, a smooth, professionally designed user interface with subtle animations, a rich set of playback controls for any type of video and recorded TV etc. Besides it is a true media center application, offering OTA radio and Internet radio, access to locally stored movies, music and photo libraries, games, etc.You can easilly purchase an Acer Revo, Dell Zino, Mac Mini, Apple TV, etc, connect it to a TV, have it automatically download new episodes of your favourite show through torrents or newsgroups and then use XBMC, Boxee or Plex with a beautiful interface to catalogue and index your Movies and TV shows and even download synopses of each show or movie. Not to mention that these programs also allow you to stream from individual network sites or Hulu right to the box and right to your TV.
... And it comes with Windows 7 at no additional cost. With the PC connected to a TV via HDMI, I see esp. the younger, tech-savvy generation adopting this as an easy, convenient approach to watching TV. Once set up, it's as simple as turning on your cable set-top box and TV, albeit delivering a vastly superior entertainment experience. See the commercials Microsoft is currently putting out there for Media Center. For once, they do not overstate the value of a product of theirs.