Video presentation device and method

A computing device may include a video input interface and video output interface to allow insertion into a video system. The device may be configured to perform passthrough operation on the incoming video, allowing the incoming signal to appear at the output interface. When overlay video operations are desired, the device may resize the incoming video, generate one or more additional overlays, and generate a modified version of the incoming video signal, where the modified version contains the one or more additional overlays along with (if desired) the original video. The device may have data network connections, and can thereby serve as an easy way, for example, to upgrade an existing video system with network and/or interactive features.