diff --git a/azbox/dmx.cpp b/azbox/dmx.cpp
index a4ab3b1..1fe5561 100644
--- a/azbox/dmx.cpp
+++ b/azbox/dmx.cpp
@@ -514,3 +514,9 @@ bool cDemux::SetSource(int unit, int source)
 	lt_info_c("%s(%d, %d): not implemented yet\n", __func__, unit, source);
 	return true;
 }
+
+int cDemux::GetSource(int unit)
+{
+	lt_info_c("%s(%d): not implemented yet\n", __func__, unit);
+	return 0;
+}
diff --git a/azbox/dmx_lib.h b/azbox/dmx_lib.h
index ffd293e..ed38048 100644
--- a/azbox/dmx_lib.h
+++ b/azbox/dmx_lib.h
@@ -55,6 +55,7 @@ class cDemux
 		void getSTC(int64_t * STC);
 		int getUnit(void);
 		static bool SetSource(int unit, int source);
+		static int GetSource(int unit);
 		// TD only functions
 		int getFD(void) { return fd; };		/* needed by cPlayback class */
 		void removePid(unsigned short Pid);	/* needed by cRecord class */
diff --git a/generic-pc/dmx.cpp b/generic-pc/dmx.cpp
index 7a59928..91525fd 100644
--- a/generic-pc/dmx.cpp
+++ b/generic-pc/dmx.cpp
@@ -477,3 +477,9 @@ bool cDemux::SetSource(int unit, int source)
 	lt_info_c("%s(%d, %d): not implemented yet\n", __func__, unit, source);
 	return true;
 }
+
+int cDemux::GetSource(int unit)
+{
+	lt_info_c("%s(%d): not implemented yet\n", __func__, unit);
+	return 0;
+}
diff --git a/generic-pc/dmx_lib.h b/generic-pc/dmx_lib.h
index ffd293e..ed38048 100644
--- a/generic-pc/dmx_lib.h
+++ b/generic-pc/dmx_lib.h
@@ -55,6 +55,7 @@ class cDemux
 		void getSTC(int64_t * STC);
 		int getUnit(void);
 		static bool SetSource(int unit, int source);
+		static int GetSource(int unit);
 		// TD only functions
 		int getFD(void) { return fd; };		/* needed by cPlayback class */
 		void removePid(unsigned short Pid);	/* needed by cRecord class */
diff --git a/libspark/dmx.cpp b/libspark/dmx.cpp
index 332e107..75aa87a 100644
--- a/libspark/dmx.cpp
+++ b/libspark/dmx.cpp
@@ -595,3 +595,13 @@ bool cDemux::SetSource(int unit, int source)
 		dmx_source[unit] = source;
 	return true;
 }
+
+int cDemux::GetSource(int unit)
+{
+	if (unit >= NUM_DEMUX || unit < 0) {
+		lt_info_c("%s: unit (%d) out of range, NUM_DEMUX %d\n", __func__, unit, NUM_DEMUX);
+		return -1;
+	}
+	lt_info_c("%s(%d) => %d\n", __func__, unit, dmx_source[unit]);
+	return dmx_source[unit];
+}
diff --git a/libspark/dmx_lib.h b/libspark/dmx_lib.h
index 99ac526..e85dc3c 100644
--- a/libspark/dmx_lib.h
+++ b/libspark/dmx_lib.h
@@ -57,6 +57,7 @@ class cDemux
 		void getSTC(int64_t * STC);
 		int getUnit(void);
 		static bool SetSource(int unit, int source);
+		static int GetSource(int unit);
 		// TD only functions
 		int getFD(void) { return fd; };		/* needed by cPlayback class */
 		void removePid(unsigned short Pid);	/* needed by cRecord class */
diff --git a/libtriple/dmx_td.h b/libtriple/dmx_td.h
index 4b35ece..e657592 100644
--- a/libtriple/dmx_td.h
+++ b/libtriple/dmx_td.h
@@ -63,6 +63,7 @@ class cDemux
 		int getUnit(void);
 		/* tripledragon is unlikely to get a second tuner, so stub it out right here */
 		static bool SetSource(int /*unit*/, int /*source*/) { return true; };
+		static int GetSource(int /*unit*/) { return 0; };
 		// TD only functions
 		int getFD(void) { return fd; };		/* needed by cPlayback class */
 		void removePid(unsigned short Pid);	/* needed by cRecord class */