1. A method for capturing video presentations, the method comprising: detecting, performed by one or more microprocessors, when a video presentation has begun by analyzing an incoming video stream; determining whether a presentation element in the video presentation is static or dynamic in response to detecting that the video presentation has begun; generating an image from the presentation element when the presentation element is static; generating a video clip from the presentation element when the presentation element is dynamic; extracting textual content of the presentation element from the image; associating a plurality of weights with a plurality of text of the textual content of the presentation element based on types of the plurality of text such that a first weight is associated with a first text of the plurality of text that is not a title of the presentation element and a second weight is associated with a second text of the plurality of text of the presentation element, the second weight being greater than the first weight and associated with the second text in response to determining that the second text is a title of the presentation element, the first text and the second text being weighted textual content; receiving supplemental content corresponding to the image or the video clip; storing the weighted textual content and the supplemental content in a searchable index; detecting when the video presentation has stopped by analyzing the incoming video stream; and stopping the generation of the video clip and the image in response to detecting that the video presentation has stopped, wherein in response to the extracted textual content associated with the image, stored in the searchable index, matching a search query: audio content is extracted from the generated video clip, and the audio content associated with the image is played and returned in response to the search query.