Virtual Machine Home Theatre PC

Planning an HTPC build. Want three LCD screens around the house each with a wireless kbd/mouse capable of movies, internet, TV, apps, & email. Processors are increasingly supporting virtualization to aid the software solutions. Also, wired or wireless household network? What hardware can transmit three sets of KVM into one machine with three virtual machines? I saw reverse KVM switches which allow two users to share one computer or server simultaneously, but not independently. Parallels is a company with virtualization solutions, but I’m still unsure how to connect it.