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The picture quality on analog TV is not always good but you can modify parameters in CINELERRA-GG to make it look more like it did in the studio.
First, when capturing the video, capture it in the highest resolution possible. For Europeans this would be 720×576 and for North Americans, 720×480. Do not adjust the brightness or contrast in the recording monitor, but you might want to max out the color. Capture the video using MJPEG or uncompressed Component Video if possible; if not possible, then capture it using JPEG preferably or RGB if that is all that will work. Now on the timeline use Settings → Format to set a YUV colorspace, drop a Downsample effect on the footage and set it as follows:
Horizontal: 2 Horizontal offset: 0 Vertical: 2 Vertical offset: 0 red x green x blue alpha |
Use the Camera in the compositor to shift the picture up or down a line to remove the most color interference from the image. If you have vertical blanking information or crawls which constantly change in each frame, block them out by using a Mask. This improves compression ratios. More invasive quality improvement techniques involve removing the interlace via deinterlacing.