An information handling system outputs plural types of TV out signal formats from a common TV out port by configuring graphics card digital-to-analog converters to generate a selected TV out signal and communicating the TV out signal through an appropriate adapter cable. For instance, graphics card VGA digital-to-analog converters are selectively configured to output component video with three converters, super video with two converters or composite video with one converter. The TV out signal is outputted at a super video port with component and composite video communicated through an adapter cable having a super video connector at one end and a component video connector at another end. Automated selection of the TV out signal format is performed by detecting the number of active TV out signals, three for component video, two for super video and one for composite video.