Kodi/XBMC now runs on a great variety of operating systems and hardware.
It supports ARM and Intel processors, Windows, OS X, and several shades of Linux.
Microsoft recently announced that after a dozen years, it would no longer include support for Windows Media Center (WMC) in the upcoming Windows 10.
Microsoft has moved a lot of WMC-like capability into the Xbox platform.
The Xbox One will have live TV viewing capability that will support third-party, over-the-air tuners from Hauppauge and presumably others in the future.
WMC ceased development in 2009 with the Windows 7 release.
A port for Windows 8 was offered based on requests from the WMC user community, but it offered no new features.
The premise was to leverage the power of PC hardware to enable an all-in-one media center, capable of playing DVDs, videos, photos and music with a 10 foot remote control interface.
Perhaps the biggest feature, at a time when not everyone had a DVR, was the live TV recording functionality it offered when paired with PC TV tuner devices.
Plex is a fork of the original XBMC open source project that first became available in 2009.
Originally finding traction on the Mac as a media server, it has since been extended to Windows and Linux.
The DVR capability let you own your own recorder with the expandable space of a PC hard drive, as well as not having to pay a fee for the electronic TV guide as either the TV providers or Ti Vo charge.