1. A very nice introduction is the video by Sherwin Nuland, a surgeon and author, he talks about the development of electroshock therapy as a cure for severe, life-threatening depression. Midway through, his story turns personal. You can see his lecture on ECT here.
2. A patient who has ECT shares his views on this treatment on video (vlog). You can follow him during the course because he is giving regular updates of his experiences.
Before his first ECT
3. This video shows the preparations before ECT
4. This video shows a patient both before and after ECT. There is also some footage of the treatment itself