Breakaway,
My son does have ADHD, and he can sit quietly without making a peep if he's in front of the TV or video game. Thankfully, it's becoming the same way with books! However, if he's not occupies in one of those ways, it's the constant chatting, making noises, singing, QUESTIONS, invading my personal space ; ), and just generally "on". He wants constant attention and needs LOTS of stimulation. Like I always say, downtime is not our friend. Our developmental pediatrician says that most kids with ADHD can focus for long periods of time on video games and TV.
That certainly doesn't mean your son had ADHD! I think all of these things can be related to just giftedness and the need for intellectual stimulation. You hear this from so many parents on here. My ds6 is very extroverted and social like me and loves to interact with others. However, he hasn't learned to enjoy the peace and quiet of alone-time yet like his mom!
