Operating System

[jdocop]

I take it by the few topics that might address this that it is not possible to reformat the HDD, and then attempt to install some other type of OS. Is that correct? I was just thinking that it would be nice if I could get Flash videos to play, using a newer version of the Flash player, like, maybe whatever is current now............?????
Anyone have any ideas? (just seems like it would be nice to see you tube videos, and maybe do some television streaming........)