(This show has aged remarkably well.)
I'm not exactly sure what times and days of the week get the most web traffic, though I'd suspect Saturday mornings are pretty low. Hence, my strategy here. I figure since no other websites bother to update at this time, there's a vacuum to fill.
The timing works for every demographic. Those with children will be online desperately trying to find something to listen while their kids are blaring Kidd Video (that's still on, right?) on the TV. Single, childless people will be waking up hungover, going over to the computer and checking their Facebook to see if the pics from the party they went to (or weren't invited to) have been posted yet. And BAM! there's the link to my latest podcast.
Needless to say, I've got this whole internet marketing thing down.