Dvd and/or vhs rental sometime in mid 2000s, but it kept bugging out at the Quintesson execution scenes. I was huge into the G1 cartoon from about 2003 to 2007, when they played it all the time on Boomerang. I eventually gravitated a little more to Cybertron in 2005-6 and the movies thereafter, but I'd always go back to the G1 cartoon.