There is no shortage of good cabinet hardware knobs for your living room but I would like to tell you that different hardware suits different kind of cabinets and doors so they have to be chosen very very carefully otherwise instead of decorating you will mess up with the things already ok. If you want to avoid such a situation then try going to a designing expert.
I will tell you that how you can make your living room beautiful and the first step which I will suggest you get some designer brass hardware from Arthur Harris or gold plated knobs from whoever sells them.Second and third steps include painting the living room and finally never buy simple things for living room.
PN0417V-SN-C-Liberty Traditional Pull with Satin Nickel
PN6498C-SS-C–Liberty Modern Knob with Stainless Steel