This Week's Numb3rs - SPOIL3RS

[eotu]

At the end of the episode, we see Don going into a synagogue. It is now canon that the Epps family is Jewish. As far as I can tell, the Epps family has been Jewish in fanon since the beginning of the fanfiction. Can someone tell me when it was first determined, both canon and fanon, that they were Jewish? Was it in the show before, and I just missed it?

As an aside, does anyone recognize the synagogue in the episode? I think it's the Wilshire Boulevard Temple, based on a fast google search, but I'm unfamiliar with Jewish LA, so I could easily be wrong.

TIA!