A good Keynote (not PowerPoint) Presentation will be the backbone of your speech. It will incorporate your still images, videos and voice synthesizer .wav files (containing the content of your speech). Instructional videos for Keynote are readily available on the Internet explaining how to do this. To deliver the speech, simply have someone play the Keynote presentation on the venue's big screen while you drive a telepresence robot onstage. If it sounds complicated, it's not. All of these items are commercially available and have instructional videos. An example presentation is shown below.