I was watching the video for Segment 76 Timeline Filtering, but the audio sounded like that from the previous video and was not matching what I was seeing in the video and the audio cuts off mid sentence when you reach the end of the video. The audio from Segment 75 Timeline Overview is has been mixed in with the visuals from Segment 76 Video.
The below screen cast gives a quick snippet of what is happening. If you look at the video Mo is typing a filter in the filter box, but the audio is talking about using the + and - buttons to zoom in / out of the timeline.
http://www.screencast.com/t/Xqcy7yCOjB96