Abstract: Apparatus for selecting a particular signal group from a signal group sequence including a video recorder for sequentially recording the video signals from a plurality of surveillance television cameras, the signal group sequence comprising a sequential record of video fields interspaced in a predetermined order, together with a sequence code. During playback, a particular frame or field in the sequence is picked out according to the code associated therewith and is fed in parallel both to a video display and a disc storage device. At the completion of the selected frame the disc is unloaded into the display at its cycling rate to fill in the gap left by the discarded frames until the next frame sequence is initiated.