A VIR-signal processing circuitry for a VTR (video tape recorder) having a comb filter for obtaining a correct operation of the VIR circuit incorporated in a television receivers, comprises a comb filter stopping means for preventing the VITS (vertical interval test signal) on the 18th line from polluting the VIRS (vertical interval reference signal), a phase transfer means for transferring the phase information of the transmitted VIRS to the reference subcarrier after elimination of the crosstalks by integrating the VIRS, an amplitude transfer means for transferring the amplitude information of the transmitted VIRS to the output signal of said phase transfer means after elimination of the crosstalks by integrating the VIRS, and a VIRS replacing means for replacing the transmitted VIRS by the newly developed chrominance reference using the output signal of said amplitude transfer means.