Hi Rob,
At his age, there's not much for him to do but eat, sleep & poop.
I would avoid plopping him in front of the TV. Classical music is EXCELLENT for him, especially at his age.
It will soothe him, as well as contribute to his brain development. Mozart is especially good.
As well too you want to stimulate him. Not too much tho, as over stimulation can make him cranky, but plenty of touch. Benfun's advice about the bicycle is good. rotate his muscles, and baby massage is also very good. The more stimulation he receives in the form of human touch is great for his development, emotionally, physically and psychologically.
Talk to him, and let him know he's loved. Baby's his age, can't understand your words, but they do understand your feelings, and are far more psychic than people know. They are very much in touch with feelings... their own as well as the feelings of others, so try to keep your own stress level and feelings of hostility to a minimum so you don't transmit those to baby.
Get him hooked on healthy foods at an early age, ...and avoid the sweets. Alot of the commercial baby food manufacturers include a lot of starches as fillers, so if possible, avoid using bottled baby food and make your own. If there is an organic produce market near you, you can get organic fruits and vegetables, and make your own fruit & vegge juices, and purees just for baby when he's ready.
Most often new parents will use baby's nap time as the time to try to get things done, ...but that just leaves you disorganized and frazzled sometimes. Try to nap when baby naps and you might find yourself more refreshed.
ps - If you go anywhere like X-mas shopping, ...always remember the baby. Don't leave him at the mall.