Show different message if Upcoming text isn't available. Assume premiere date has passed

src/renderer/views/Watch/Watch.js

@@ -281,8 +281,14 @@ export default Vue.extend({
               this.activeSourceList = this.videoSourceList
             }
           } else if (this.isUpcoming) {
-            const upcomingTimestamp = new Date(result.videoDetails.liveBroadcastDetails.startTimestamp)
-            this.upcomingTimestamp = upcomingTimestamp.toLocaleString()
+            const startTimestamp = result.videoDetails.liveBroadcastDetails.startTimestamp
+
+            if (typeof startTimestamp !== 'undefined') {
+              const upcomingTimestamp = new Date(result.videoDetails.liveBroadcastDetails.startTimestamp)
+              this.upcomingTimestamp = upcomingTimestamp.toLocaleString()
+            } else {
+              this.upcomingTimestamp = null
+            }
           } else {
             this.videoLengthSeconds = parseInt(result.videoDetails.lengthSeconds)
             this.videoSourceList = result.player_response.streamingData.formats.reverse()
@@ -672,7 +678,7 @@ export default Vue.extend({
     handleRouteChange: function () {
       clearTimeout(this.playNextTimeout)
 
-      if (this.rememberHistory && !this.isLoading && !this.isLive) {
+      if (this.rememberHistory && !this.isUpcoming && !this.isLoading && !this.isLive) {
         const player = this.$refs.videoPlayer.player
 
         if (player !== null && this.saveWatchedProgress) {

src/renderer/views/Watch/Watch.vue

@@ -43,12 +43,19 @@
               class="premiereIcon"
             />
             <p
+              v-if="upcomingTimestamp !== null"
               class="premiereText"
             >
               Premieres on:
               <br>
               {{ upcomingTimestamp }}
             </p>
+            <p
+              v-else
+              class="premiereText"
+            >
+              {{ $t("Video.Starting soon, please refresh the page to check again") }}
+            </p>
           </div>
         </div>
       </div>

static/locales/en-US.yaml

@@ -377,6 +377,7 @@ Video:
   Watching: Watching
   Watched: Watched
   Autoplay: Autoplay
+  Starting soon, please refresh the page to check again: Starting soon, please refresh the page to check again
   # As in a Live Video
   Live: Live
   Live Now: Live Now