I can't answer the first TFs question either. I started getting TFs when I was a young kid; I think 7, perhaps younger, & mostly for Christmases & Birthdays (& sometimes if I asked). I do remember getting Air Raid & Slingshot early on... Took a long time before I knew who they were, though. Didn't get a whole set of Aerialbots until I got a G1 KO Set in '07 or '08 (I only bought 2/3s of the Energon ones, as Superion Maximus didn't look good enough to warrant breaking my no repaints rule).