You can do that with a PC, hook up computer to TV with HDMI cable as you would with a console, buy a small desk for kb+m or use a 360 controller.
PC>All.
i hate when people say garbage like this...if you honestly knew how wrong you are
you at least slightly can based on your signature because the HDMI on the dx11 ati's has HD audio output....but your ati does not support dolby so that's one aspect you just failled to meet console hardware with
the x360 gamepad is usually not supported properly. afterall why would the aim bending and aim lock code be needed on pc? that's just going to be used and exploited by kb\m players we can't have that.
sitting on a couch using a keyboard and mouse is just lame...seriously if you think that's even slightly relaxing gameplay your a twisted person, i can lay down with a gamepad. the mouse doesn't work sideways
i've yet to find a videocard that actually supports tv's properly. maybe beacuse i'm yet to find a hdmi cable at a decent price that reaches my tv but so far resolution issues have hampered and ruined my experience thoroughly
the x360 at least auto updates and keeps everything nice and patched..hardware and software are always upto date. there is no install, dvd goes in and game starts. pc has gotten better in this regard. ati has drivers updated by steam, my creative fatality however can't be trusted with driver updates. few games patch themselves..steam has helped alot with that.
like i said two pages back i'm getting this one on pc. mostly because i have friends and family i'll be seeing online. i'll be using a gamepad as i feel movement will be key in this title, but your pc is NOT a gaming console. you can try but gaming hardware is designed for that purpose and will do it better with less hassle. (this is not an argument about gaming hardware performance just practicality, performance is moot as it costs more than developers are willing to spend to push pc's further than the consoles can go)