Abstract: A system for reducing flickers in converting non-interlaced video signals to interlaced video signals is disclosed. The non-interlaced video signals are first modified by two independent adjustable parameters, each having a different weight on the received signals. A FIFO line buffer is used to delay respectively and alternatively the two modified signals to generate a portion of output signals. The final output interlaced signals are generated by combining the delayed signal from the FIFO line buffer with one of the two modified signals. As a result and for the first time, only one FIFO line buffer is used in such system for producing a converted interlaced signal with minimum visual errors in video signal conversions.