Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for ad insertion by a display device coupled to a media device via a high-definition media interface (HDMI) connection, where the media device provides media content and/or a control signal. When the media device pauses the media content, the display device can determine that a pause event has occurred and insert an ad shown on the display device. Further, some embodiments include determining the context and/or content of the media content that is paused, and determining an ad that is customized to the determined context and/or content to be displayed on the display device. In some embodiments, the display device can determine additional information from the control signal that may also be used to determine the ad to be displayed on the display device.