Abstract: Systems and methods are provided for correcting captions in real time using a closed caption decoder/encoder with a video processing system with real time program duration compression and/or expansion that adds to and/or drops frames from a captioned video signal in real time. A decoder captures caption data from the captioned input video signal, time-stamps the caption data with time codes and transmits the time-stamped caption data to a captioning processor. The captioning processor monitors the video processing system to provide a list of added and/or dropped frames. The captioning processor, with the information captured from the decoder and the video processing system, corrects the timing of the caption data and encodes the corrected captions into the edited video output signal.