Hasbro has put up full-length versions of the first 13 episodes of Transformers: Animated on their Monkeybar website. Here’s their news post about it:
Watch full length TRANSFORMERS ANIMATED episodes on MBTV!
You asked for it! Now you can watch full length episodes of TRANSFORMERS ANIMATED on MonkeyBarTV.com.
Watch Survival of the Fittest!
However, I cannot get their link to work, so here’s an alternate working link.