In the DE1-SoC Computer System Manual (available in the University program) in the main schematic appears a TV Decoder Video-in input port.But no furter details is available in the manual. Moreover looking inside the Qsys structure of the DE1-SoC Computer System it seemes that this port is not present ! An error in the schematics I presume !?
Thank you ...... but I'm not speaking about the DE1_SoC Board !! I know it includes the TV Decoder. I'm speaking about the "DE1 Soc Computer System" provided by the Altera University Program (it which is a pre-assembled configuration of a NIOS, an ARM process and several others facilities that you can download on your board and program)