[dtvmcdonald]

These are images I use is setting up color sets, with a special emphasis on sets using I-Q demodulation such as the CT-100.
You put these on a DVD-ROM or a USB stick and play them on your modern DVD or Blu-Ray player that does jpegs.
My player's native file size is 720x484 so that's what they mostly are.

The first set are especially useful with a scope looking at I, Q, R, G, and B
lines as they are full screen vertically.

The ones with gray background are constant Y so on the screen visually they should be pure gray with "Color" at zero or/and the fine tuning well detuned.

The next one can be used visually or on a scope. The levels are 0 for the background, from top to bottom and left to right:
255 170 85 43 128 213
The average of each line is constant luminance.