The reshoot covers the same material. What has happened is that we've changed the format of our shows to 30 minute shows instead of two hour shows. Also, because it was some of our earliest shows, we wanted to refresh them for the new format but the exam objectives haven't changed.
For example, we refreshed the A+ content recently (within the last 6 months) only to start again because of our format change. So we're doing it again (2X within the same year) Our goal is to do it better than anyone.
I would watch the old content, because there is great stuff in there. Mike and Don have more server experience that most. I step in every once in a while to give them a break but it's solid material. So it's not that it's bad material but the format has changed and you'll see that all of our shows will eventually get refreshed...just now it's a lot harder since we've got a lot of content to reshoot!