Once (started this Aikido class two weeks ago). Just last night the instructer taped the class and I got to see what I look like at this point. I was nerwous at first but decided to forget about the camera and concentrate on the class. I figured I look like a beginer any way so why be concerned about it. I could tell when looking at the tape I was nervous at first but then relaxed.
The plan is to tape once a month or so to see the progress.