Gamerz1569, In most points I agree with you about PC being better.
But the Graphic and Audio quality being better.. that is just plain simple bullocks. How well your Audio and Graphic quality is all depends on your rig.
I myself have a 107CM (Diagonal) long TV, this combined with 5.1 Dolby surround sound (Costed around 1500-1700 Euros) Give me better Audio and also better Graphical quality over my PC.
Even though I am getting a new PC which might be having better Graphics, Audio for PC still is almost never better then Audio for TV and so.