My conversation is very undeveloped?

[Mr. McSkull]

By recollecting many social memories from my life, I noticed something very disturbing - I can't talk to people on my own.
I'm not sure if it has anything to do with self esteem or charisma, it just seems like nothing comes up that's fitting for conversation when I'm talking to people.
Of course, if I'm talking to someone who I've known for a while, I can develop more complex conversations with them which are far beyond "small talk", but the small talk phase is what gets me - I can't maintain a conversation with a person I know nothing about, and the matter of fact is, most people don't reveal any worthwhile information about themselves to people they aren't sufficiently familiar with.
What's weird is, I seem to be a lot more talkative if I have someone "backing me up" - a third extension to a dialogue - I gather that since there's a lot more conversation going on between three people than than does between two, I have more space to insert myself into the conversation.
On the other hand, I know a couple of guys who can talk to anyone in the world without knowing a thing about them. One of them seems to have an answer to everything, while the other one speaks his mind freely without censoring himself or feeling shame, which means that he says a lot of dumb and inappropriate things, but people around him seem to easily accept that.
Me, on the other hand, my brain is full of static when talking to people. It's not that I'm shy or anything ,it's just that there's nothing to say.
Perhaps I could partially explain this nuisance with the fact that I never watch any T.V., don't watch/read the news and hardly ever watch any movies, as I am much more entertained by video games, as a choice of digital media...
It really bothers me that I can't converse with my peers and that someone has to really go my way in order to invoke a lasting conversation.
Can anyone suggest any solutions to this?