A video signal processing apparatus processes input video signals. A video signal
source supplies the input video signals carrying at least a first video signal
that is an interlaced signal having 480 effective scanning lines and a second video
signal that is an interlaced signal having 1080 effective scanning lines. A video
signal processor converts at least the first and the second video signals into
a third video signal that is a progressive signal having 1440 effective scanning
lines, thus outputting the third video signal. The output third video signal may
be converted into a fourth video signal that is an interlaced signal by a progressive-to-interlace
converter, thus outputting the fourth video signal.
