The zeitgeist

12/10/2005 - Saturday Night Live does a joke commercial on the complexity of the Medicare prescription drug plan, and the joke includes a bit about RSS feeds and podcasts.

12/12/2005 - Arrested Development episode has a joke where the twin brother Oscar is told he can't update "but i'm oscar dot com" and he replies with something like "ok, I was thinking of trying a podcast."

It still surprises me when I hear "blog" on TV without a definition attached. "Podcast" being used in jokes on mainstream shows kind of blows my mind.