diff --git a/demos/presentation/textview.go b/demos/presentation/textview.go
index 01aea1f..244de80 100644
--- a/demos/presentation/textview.go
+++ b/demos/presentation/textview.go
@@ -45,14 +45,18 @@ func TextView1(nextSlide func()) (title string, content tview.Primitive) {
 	go func() {
 		var n int
 		for {
-			n++
-			if n > 512 {
-				n = 1
-				textView.SetText("")
-			}
+			if textView.HasFocus() {
+				n++
+				if n > 512 {
+					n = 1
+					textView.SetText("")
+				}
 
-			fmt.Fprintf(textView, "%d ", n)
-			time.Sleep(200 * time.Millisecond)
+				fmt.Fprintf(textView, "%d ", n)
+				time.Sleep(200 * time.Millisecond)
+			} else {
+				time.Sleep(time.Second)
+			}
 		}
 	}()
 	textView.SetBorder(true).SetTitle("TextView implements io.Writer")