I wasn't too sure where to post this, but whilst waiting for the Pure Pwnage movie to unlock (bastards! 3pm EST === 5am tomorrow ) if found the original g1 series is available for rent, 0.99c for each episode

https://vimeo.com/ondemand/transformersgen1

Also, I've been reading though the original IDW comics... all of which are available from your local library! for free! along with a lot of collected comic editions... and they also have G1 dvds that you can rent for free