Abstract: A method for obtaining television rating points for television channels is proposed. A television is used to periodically capture an image of part of a frame that is currently displayed thereby, where the image thus captured contains a channel logo contained in the part of the frame. The television determines whether the channel logo contained in the image matches any one of multiple predefined channel logos. If affirmative, the television transmits identification information that indicates a television channel corresponding to the matched one of the predefined channel logos to a server for subsequent computation of television rating points.