"Menace of the Madniks" (aired on October 2, 2010 in Australia already)
Plot: "Booster Gold travels back in time to hang out with his old friend, the second Blue Beetle. His time traveling changes the present. Batman and Booster Gold must fix the timeline."
YES!
Blue and Gold, together, on screen and voiced!!
Sounds like an early plot straight from Geoff Johns modern Booster Gold comic series!