diff --git a/include/change_detector.h b/include/change_detector.h
index 39533e1..a17d304 100644
--- a/include/change_detector.h
+++ b/include/change_detector.h
@@ -19,6 +19,10 @@ public:
         value = v;
     }
 
+    void call() {
+        for (size_t i = 0; i < MaxObservers; ++i) seen[i] = false;
+    }
+
     bool changed(size_t id) {
         if (id >= MaxObservers) return false;
         if (!seen[id]) {
diff --git a/src/gui.cpp b/src/gui.cpp
index ea4f698..723fb06 100644
--- a/src/gui.cpp
+++ b/src/gui.cpp
@@ -2992,6 +2992,18 @@ void BuildAdvancedRDS() {
   eonDisplay.reset();
   eccDisplay.reset();
   rtDisplay.reset();
+  radio.rds.PTY.call();
+  radio.rds.PTYN.call();
+  radio.rds.ECC.call();
+  radio.rds.hasArtificialhead.call();
+  radio.rds.hasCompressed.call();
+  radio.rds.hasStereo.call();
+  radio.rds.TP.call();
+  radio.rds.TA.call();
+  radio.rds.hasEON.call();
+  radio.rds.hasTMC.call();
+  radio.rds.hasCT.call();
+  radio.rds.hasRTplus.call();
 }
 
 void BuildDisplay() {
@@ -3109,6 +3121,18 @@ void BuildDisplay() {
   eonDisplay.reset();
   eccDisplay.reset();
   rtDisplay.reset();
+  radio.rds.PTY.call();
+  radio.rds.PTYN.call();
+  radio.rds.ECC.call();
+  radio.rds.hasArtificialhead.call();
+  radio.rds.hasCompressed.call();
+  radio.rds.hasStereo.call();
+  radio.rds.TP.call();
+  radio.rds.TA.call();
+  radio.rds.hasEON.call();
+  radio.rds.hasTMC.call();
+  radio.rds.hasCT.call();
+  radio.rds.hasRTplus.call();
   xPos = 0;
   xPos2 = 0;
   MPold = 99;