diff --git a/Changes.txt b/Changes.txt
index 507bfc84f..48c78a4b6 100644
--- a/Changes.txt
+++ b/Changes.txt
@@ -23,7 +23,9 @@
 
   * Make NTSC custom phase shift not affect Yellow anymore.
 
-  * Allow changing palette adjustables in 1% steps again.
+  * Allow changing custom palette and TV effects adjustables in 1% steps again.
+
+  * Fixed custom palette and TV effects adjustable slider rounding issue.
 
   * Fixed some bugs in 3E+ scheme when using non-standard ROM sizes.
 
diff --git a/src/common/PaletteHandler.cxx b/src/common/PaletteHandler.cxx
index 0483b6bb9..ec0d7691b 100644
--- a/src/common/PaletteHandler.cxx
+++ b/src/common/PaletteHandler.cxx
@@ -139,7 +139,7 @@ void PaletteHandler::changeCurrentAdjustable(int direction)
   {
     int newVal = scaleTo100(*myAdjustables[myCurrentAdjustable].value);
 
-    newVal = BSPF::clamp(newVal + direction * 2, 0, 100);
+    newVal = BSPF::clamp(newVal + direction * 1, 0, 100);
 
     *myAdjustables[myCurrentAdjustable].value = scaleFrom100(newVal);
 
diff --git a/src/common/tv_filters/NTSCFilter.cxx b/src/common/tv_filters/NTSCFilter.cxx
index 8e7e899c9..5a61dd140 100644
--- a/src/common/tv_filters/NTSCFilter.cxx
+++ b/src/common/tv_filters/NTSCFilter.cxx
@@ -119,7 +119,7 @@ void NTSCFilter::changeCurrentAdjustable(int direction,
   //  return "'Custom' TV mode not selected";
 
   newValue = scaleTo100(*ourCustomAdjustables[myCurrentAdjustable].value);
-  newValue = BSPF::clamp(newValue + direction * 2, 0, 100);
+  newValue = BSPF::clamp(newValue + direction * 1, 0, 100);
 
   *ourCustomAdjustables[myCurrentAdjustable].value = scaleFrom100(newValue);
 
diff --git a/src/gui/VideoAudioDialog.cxx b/src/gui/VideoAudioDialog.cxx
index 7fcc65cf8..23e7692cc 100644
--- a/src/gui/VideoAudioDialog.cxx
+++ b/src/gui/VideoAudioDialog.cxx
@@ -47,7 +47,7 @@
     new SliderWidget(myTab, _font, xpos, ypos-1, swidth, lineHeight,     \
                      desc, lwidth, cmd, fontWidth*4, "%");               \
   myTV ## obj->setMinValue(0); myTV ## obj->setMaxValue(100);            \
-  myTV ## obj->setStepValue(2);                                          \
+  myTV ## obj->setStepValue(1);                                          \
   myTV ## obj->setTickmarkIntervals(2);                                  \
   wid.push_back(myTV ## obj);                                            \
   ypos += lineHeight + VGAP;
@@ -233,7 +233,6 @@ void VideoAudioDialog::addPaletteTab()
   CREATE_CUSTOM_SLIDERS(Contrast, "Contrast ", kPaletteUpdated)
   CREATE_CUSTOM_SLIDERS(Bright, "Brightness ", kPaletteUpdated)
   CREATE_CUSTOM_SLIDERS(Gamma, "Gamma ", kPaletteUpdated)
-  myTVHue->setStepValue(1);
 
   // The resulting palette
   xpos = myPhaseShiftNtsc->getRight() + fontWidth * 2;