diff --git a/src/video_capture/aja.cpp b/src/video_capture/aja.cpp
index 2d59d8306..bf663fbc4 100644
--- a/src/video_capture/aja.cpp
+++ b/src/video_capture/aja.cpp
@@ -241,6 +241,11 @@ vidcap_state_aja::vidcap_state_aja(unordered_map<string, string> const & paramet
                 }
         }
 
+        if (!NTV2_INPUT_SOURCE_IS_SDI(mInputSource) && mInputChannel == NTV2_CHANNEL_INVALID) {
+                LOG(LOG_LEVEL_NOTICE) << MODULE_NAME "Non-SDI source detected - we will use "
+                        "probably channel 1. Consider passing \"channel\" option (see help).\n";
+        }
+
         if (audioFlags & VIDCAP_FLAG_AUDIO_EMBEDDED) {
                 // this maps according to mInputSource - EMBEDDED (SDI), HDMI or ANALOG
                 mAudioSource = NTV2InputSourceToAudioSource(mInputSource);
@@ -871,7 +876,7 @@ static void show_help() {
         cout << "\t\tVideo input is 4K.\n";
 
         cout << rang::style::bold << "\tchannel\n" << rang::style::reset;
-        cout << "\t\tChannel number to use (advanced, from 1).\n";
+        cout << "\t\tChannel number to use (indexed from 1). Doesn't need to be set for SDI, useful for HDMI (capture and display should have different channel numbers if both used, also other than 1 if SDI1 is in use).\n";
 
         cout << rang::style::bold << "\tconnection\n" << rang::style::reset <<
                 "\t\tConnection can be one of: ";
@@ -921,6 +926,7 @@ static void show_help() {
                         }
                         cout << "\n";
                 }
+                cout << rang::style::underline << "\tNumber of frame stores: " << rang::style::reset << NTV2DeviceGetNumFrameStores (info.deviceID) << "\n";
         }
         if (deviceScanner.GetNumDevices() == 0) {
                 cout << rang::fg::red << "\tno devices found\n" << rang::fg::reset;
diff --git a/src/video_display/aja.cpp b/src/video_display/aja.cpp
index 1e7b00ef3..f2ee8f053 100644
--- a/src/video_display/aja.cpp
+++ b/src/video_display/aja.cpp
@@ -215,6 +215,11 @@ display::display(string const &device_id, NTV2OutputDestination outputDestinatio
         }
 
         if (mOutputChannel == NTV2_CHANNEL_INVALID) {
+                if (!NTV2_OUTPUT_DEST_IS_SDI(mOutputDestination)) {
+                        LOG(LOG_LEVEL_NOTICE) << MODULE_NAME "Non-SDI destination detected - we will use "
+                                "probably channel 1. Consider passing \"channel\" option (see help).\n";
+                }
+
                 mOutputChannel = ::NTV2OutputDestinationToChannel(mOutputDestination);
 
                 //      Beware -- some devices (e.g. Corvid1) can only output from FrameStore 2...
@@ -656,7 +661,7 @@ void aja::display::show_help() {
         cout << "\n";
 
         cout << rang::style::bold << "\tchannel\n" << rang::style::reset <<
-                "\t\tchannel number to use (advanced, from 1)\n";
+                "\t\tchannel number to use (indexed from 1). Doesn't need to be set for SDI, useful for HDMI (capture and display should have different channel numbers if both used, also other than 1 if SDI1 is in use, see \"-t aja:help\" to see number of available channels).\n";
 
         cout << rang::style::bold << "\tnovsync\n" << rang::style::reset <<
                 "\t\tdisable sync on VBlank (may improve latency at the expense of tearing)\n";