diff --git a/static/js/app.js b/static/js/app.js
index 39cffad..8228d0f 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -828,7 +828,7 @@ function showEnhancedEditModal(mediaType, options, currentDateadded, currentSour
         
         <div class="form-group">
             <label for="edit-source">Source:</label>
-            <select id="edit-source" required>
+            <select id="edit-source" required onchange="handleSourceDropdownChange()">
                 <option value="manual">Manual</option>
                 <option value="airdate">Air Date</option>
                 <option value="digital_release">Digital Release</option>
@@ -846,6 +846,9 @@ function showEnhancedEditModal(mediaType, options, currentDateadded, currentSour
     
     modalBody.innerHTML = formHtml;
     
+    // Store options globally for dropdown sync
+    window.currentEditOptions = options;
+    
     // Set current values
     if (currentDateadded && currentDateadded !== '-') {
         try {
@@ -1052,6 +1055,52 @@ async function updateEpisodeDate(imdbId, season, episode, dateadded, source) {
     }
 }
 
+// Source dropdown sync function
+function handleSourceDropdownChange() {
+    const selectedSource = document.getElementById('edit-source').value;
+    const options = window.currentEditOptions;
+    
+    if (!options || !options.options) {
+        console.error('No options available for source sync');
+        return;
+    }
+    
+    // Find the option that matches the selected source
+    const matchingOption = options.options.find(option => option.source === selectedSource);
+    
+    if (matchingOption) {
+        // Found matching option - select its radio button and update date
+        const optionIndex = options.options.indexOf(matchingOption);
+        const radioButton = document.querySelector(`input[name="edit-date-option"][value="${optionIndex}"]`);
+        
+        if (radioButton) {
+            radioButton.checked = true;
+            // Update the date field using the existing function
+            updateEditDateFromOption(optionIndex, matchingOption);
+        }
+    } else {
+        // No matching option found - show "not available" message
+        const dateInput = document.getElementById('edit-dateadded');
+        if (dateInput) {
+            dateInput.value = '';
+            
+            // Show toast notification
+            const sourceLabel = selectedSource.replace(/[_:]/g, ' ').replace(/\b\w/g, l => l.toUpperCase());
+            showToast(`${sourceLabel} date not available for this item`, 'warning');
+        }
+        
+        // Clear any selected radio buttons since this source isn't available
+        const radioButtons = document.querySelectorAll('input[name="edit-date-option"]');
+        radioButtons.forEach(radio => radio.checked = false);
+        
+        // Add visual feedback to the date input
+        const dateInput = document.getElementById('edit-dateadded');
+        if (dateInput) {
+            dateInput.placeholder = 'Date not available for this source';
+        }
+    }
+}
+
 // Utility functions
 function debounce(func, wait) {
     let timeout;