beware, some squeeing ahead...
OMG, that scene when Flash opens the back of his van, sorry "Flash-mobile," and shows it to GL saying "check it out" and pats the bed, and in the background plays tacky seduction music? It was so hilarious. Slashy too.
And all those self-referential jokes were great. Like Flash suggesting a road trip, with the "hard traveling heroes" reference, not to mention the dig at Frederick Wertham a bit later... Also that gaudy costume the possessed general came up with, plus the inane but pompous speech, that was so from Supervillain 101.
I really like how Flash gets to show off his powers this season. At least to me it seems he gets to do more than in the first, though admittedly I haven't yet watched all first season episodes yet.