You can rewatch the entire thing (or parts of it) from the DNC site itself. PBS isn't playing the same thing that the DNC site is playing. This afternoon I listened to Obama's speech last night because it was interrupted by my local channel (that accidentally switched to the regular programming at 10pm). I listened to the rest on the radio and hadn't been able to see Hillary walk out on stage for a well-deserved victory lap. I wanted to see that bit of history being made.