User blog comment:Thailog/New trailer for Season 2/@comment-5037637-20120425201417/@comment-1038387-20120425212736

Kg1507:


 * The Teen Titans story you're referring to is "Titans Tomorrow". Robin had become Batman, actually. Issues #17-19 (and the Titans/Legion special) and #51-54.
 * "Sins of Youth" is the YJ event I think you mean. Klarion turned all the adults into kids and all the kids into adults.

Anon:
 * "How Long is Forever".