Love the Xbox One but Do I need it AND a Gaming PC?

I really like the presentation today and find the xbox one to be a very innovative system but...My TV watching is in a different room than my gaming (man cave) - Couldn't use TV features- And I'm still not sure I believe that these TV features will work in many regions. What are the chances Microsoft works with my local cable company to make it work?If all consoles are x86, is there a need to have both a gaming PC and a console? Will MS make all Xbox games available on PC now that it uses the same architecture?