is there a deleted scene in every episode that has aired? if not can tu tell me which episodes have some deleted scenes publicado online?

I'm sure most episodes have deleted scenes but not all are released. The ones that i know of are
-1x13: Nate, Jenny and Chuck
-2x01: Nate and Serena Book Club
(both can be found on youtube)
-3x19 Chuck and Jenny which can be watched here:
link