A igital on-screen graphic (known in the UK and New Zealand by the acronym DOG; in the US and Canada as a bug; and in Australia as a watermark) is a watermark-like station logo that many television broadcasters overlay over a portion of the screen-area of their programmes to assist viewers in identifying the channel. They are thus a form of permanent visual station identification, increasing brand recognition and asserting ownership of the video signal. In some cases, the graphic also shows the name of the current programme. Some networks use an on-screen graphic to advertise later programmes in the day's television schedule—this is generally displayed after the opening, during in-programme credits, and when returning from a commercial break. Usually in United States sportscasts (such as on CBS and NBC), the "bug" is moved to the top-right corner of the screen.