Even though it might seem like having 6 plugs and two lights might be a lot for a single circuit, you need to keep in mind that the appliances used in a living room are generally a lot different than those used in a kitchen. In the kitchen, you typically have a microwave oven, a toaster, maybe an electric frying pan or coffee maker, all of which draw a lot of amperage because they all have heating elements in them (save the microwave).
In a living room, you have lamps and entertainment equipment. A VCR, a DVD player, your game console, a TV set and maybe some other stuff. But, none of those things draws as much current as a toaster. If you had 6 kitchen outlets all on one breaker, you'd be tripping breakers all the time unless you consiously monitored your use of each kitchen appliance to prevent from tripping the breaker.
Hopefully someone will chime in and say what the electrical code allows for outlets on each circuit. All I'm saying is that the most you do in a living room is watch TV while recording it to a DVD in the evening with the lights on. So, the kind of appliances used in the living room don't use as much wattage, and you generally don't use more than two or three of them at once, whereas in a kitchen, you're scrambling eggs, making coffee and toast and nuking something in the microwave all at the same time.
