diff --git a/app/src/main/java/xdsopl/robot36/Scottie.java b/app/src/main/java/xdsopl/robot36/Scottie.java
index 7e66eee..4220166 100644
--- a/app/src/main/java/xdsopl/robot36/Scottie.java
+++ b/app/src/main/java/xdsopl/robot36/Scottie.java
@@ -8,6 +8,11 @@ package xdsopl.robot36;
 
 public class Scottie implements Mode {
 	private final int scanLineSamples;
+	private final int channelSamples;
+	private final int greenBeginSamples;
+	private final int blueBeginSamples;
+	private final int redBeginSamples;
+	private final int redEndSamples;
 	private final String name;
 
 	Scottie(String name, double channelSeconds, int sampleRate) {
@@ -16,6 +21,15 @@ public class Scottie implements Mode {
 		double separatorSeconds = 0.0015;
 		double scanLineSeconds = syncPulseSeconds + 3 * (channelSeconds + separatorSeconds);
 		scanLineSamples = (int) Math.round(scanLineSeconds * sampleRate);
+		channelSamples = (int) Math.round(channelSeconds * sampleRate);
+		double blueBeginSeconds = -(syncPulseSeconds / 2 + channelSeconds);
+		blueBeginSamples = (int) Math.round(blueBeginSeconds * sampleRate);
+		double greenBeginSeconds = blueBeginSeconds - (separatorSeconds + channelSeconds);
+		greenBeginSamples = (int) Math.round(greenBeginSeconds * sampleRate);
+		double redBeginSeconds = syncPulseSeconds / 2 + separatorSeconds;
+		redBeginSamples = (int) Math.round(redBeginSeconds * sampleRate);
+		double redEndSeconds = redBeginSeconds + channelSeconds;
+		redEndSamples = (int) Math.round(redEndSeconds * sampleRate);
 	}
 
 	@Override
@@ -30,11 +44,14 @@ public class Scottie implements Mode {
 
 	@Override
 	public int decodeScanLine(int[] evenBuffer, int[] oddBuffer, float[] scanLineBuffer, int prevPulseIndex, int scanLineSamples) {
-		if (prevPulseIndex < 0 || prevPulseIndex + scanLineSamples >= scanLineBuffer.length)
+		if (prevPulseIndex + greenBeginSamples < 0 || prevPulseIndex + redEndSamples > scanLineBuffer.length)
 			return 0;
 		for (int i = 0; i < evenBuffer.length; ++i) {
-			int position = (i * scanLineSamples) / evenBuffer.length + prevPulseIndex;
-			evenBuffer[i] = ColorConverter.GRAY(scanLineBuffer[position]);
+			int position = (i * channelSamples) / evenBuffer.length + prevPulseIndex;
+			int redPos = position + redBeginSamples;
+			int greenPos = position + greenBeginSamples;
+			int bluePos = position + blueBeginSamples;
+			evenBuffer[i] = ColorConverter.RGB(scanLineBuffer[redPos], scanLineBuffer[greenPos], scanLineBuffer[bluePos]);
 		}
 		return 1;
 	}