diff --git a/index.d.ts b/index.d.ts
index c911eef28f..02782f16c4 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1010,7 +1010,7 @@ declare namespace dashjs {
 
         getPatchLocation(manifest: object): PatchLocation[];
 
-        getPeriodbyId(id: string): object | null;
+        getPeriodById(id: string): Period | null;
 
         getProducerReferenceTime(streamInfo: StreamInfo, mediaInfo: MediaInfo): object | [];
 
@@ -2689,8 +2689,10 @@ declare namespace dashjs {
     }
 
     export interface ICurrentRepresentationSwitch {
-        mt: Date;
+        mt: number;
         t: Date;
+        to: string;
+        lto: string;
     }
 
     export interface IBufferState {
diff --git a/samples/advanced/monitoring.html b/samples/advanced/monitoring.html
index b2f2687d9b..c119710e19 100644
--- a/samples/advanced/monitoring.html
+++ b/samples/advanced/monitoring.html
@@ -45,8 +45,8 @@
 
                 if (dashMetrics && streamInfo) {
                     const periodIdx = streamInfo.index;
-                    var repSwitch = dashMetrics.getCurrentRepresentationSwitch('video', true);
-                    var bufferLevel = dashMetrics.getCurrentBufferLevel('video', true);
+                    var repSwitch = dashMetrics.getCurrentRepresentationSwitch('video');
+                    var bufferLevel = dashMetrics.getCurrentBufferLevel('video');
                     var bitrate = repSwitch ? Math.round(dashAdapter.getBandwidthForRepresentation(repSwitch.to, periodIdx) / 1000) : NaN;
                     var currentRep = player.getCurrentRepresentationForType('video');
                     var frameRate = currentRep.frameRate;