One Tuesday, at 3:00 AM, the render finished.
ffmpeg -i input.mp4 -vf "gblur=sigma=2:steps=3, blend=all_mode=addition:all_opacity=0.3, eq=brightness=0.05:contrast=1.2:saturation=1.4" -c:a copy output_glow.mp4 i saw the tv glow ffmpeg