diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index 01948e4..ae184d6 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -1,16 +1,16 @@
 import { BrowserModule } from '@angular/platform-browser';
 import { NgModule } from '@angular/core';
 
-import { ReactiveFormsModule } from "@angular/forms";
+import { ReactiveFormsModule } from '@angular/forms';
 import { AppComponent } from './app.component';
 import { routing } from './app.routing';
-import { HttpClientModule, HTTP_INTERCEPTORS } from "@angular/common/http";
+import { HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common/http';
 import { UserService } from './service/user.service';
 import { EpisodeListComponent } from './episode-list/episode-list.component';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { EpisodeDetailsComponent } from './episode-details/episode-details.component';
 import { LayoutModule } from '@angular/cdk/layout';
-import { MatToolbarModule, MatButtonModule, MatSidenavModule, MatIconModule, MatListModule } from '@angular/material';
+import { MatToolbarModule, MatButtonModule, MatSidenavModule, MatIconModule, MatListModule, MatDialogModule } from '@angular/material';
 import { UiModule } from './ui/ui.module';
 import { FilterPipe } from './pipes/filter.pipe';
 import { ExportComponent } from './export/export.component';
@@ -31,7 +31,8 @@ import { PostEditComponent } from './post-edit/post-edit.component';
 import { PostComponent } from './post/post.component';
 import { SidenavComponent } from './sidenav/sidenav.component';
 import { LinkifyWithTextPipe } from './pipes/linkifyWithText.pipe';
-import {SafeResourceUrlPipe} from "./pipes/safeResourceUrl.pipe";
+import { SafeResourceUrlPipe } from './pipes/safeResourceUrl.pipe';
+import { ConfirmationDialogComponent } from './shared/confirmation-dialog/confirmation-dialog.component';
 
 
 @NgModule({
@@ -56,7 +57,8 @@ import {SafeResourceUrlPipe} from "./pipes/safeResourceUrl.pipe";
     PostDetailsComponent,
     PostEditComponent,
     PostComponent,
-    SidenavComponent
+    SidenavComponent,
+    ConfirmationDialogComponent
   ],
   imports: [
     BrowserModule,
@@ -70,9 +72,16 @@ import {SafeResourceUrlPipe} from "./pipes/safeResourceUrl.pipe";
     MatSidenavModule,
     MatIconModule,
     MatListModule,
+    MatDialogModule,
     UiModule
   ],
-  providers: [ { provide: HTTP_INTERCEPTORS, useClass: JwtInterceptor, multi: true }, UserService],
+  entryComponents: [
+    ConfirmationDialogComponent
+  ],
+  providers: [
+    { provide: HTTP_INTERCEPTORS, useClass: JwtInterceptor, multi: true },
+    UserService
+  ],
   bootstrap: [AppComponent]
 })
 export class AppModule { }
diff --git a/src/app/episode-details/episode-details.component.html b/src/app/episode-details/episode-details.component.html
index b19f85f..1244f74 100644
--- a/src/app/episode-details/episode-details.component.html
+++ b/src/app/episode-details/episode-details.component.html
@@ -6,7 +6,7 @@
   </div>
   <div class="row">
     <div class="col">
-      Current: {{ now | date:'hh:mm:ss EEEE dd LLL' }}
+      Current: {{ now$ | async | date:'hh:mm:ss EEEE dd LLL' }}
     </div>
   </div>
   <div class="row mb-2">
@@ -97,4 +97,4 @@ <h2>{{episode.name}}</h2>
         </div>
   </div>
   
-</div>
\ No newline at end of file
+</div>
diff --git a/src/app/episode-details/episode-details.component.ts b/src/app/episode-details/episode-details.component.ts
index 4e8686a..8ca1aaa 100644
--- a/src/app/episode-details/episode-details.component.ts
+++ b/src/app/episode-details/episode-details.component.ts
@@ -1,11 +1,12 @@
 import { Component, OnInit, Input } from '@angular/core';
-import { EpisodeService } from '../service/episode.service';
-import { Episode } from '../model/episode';
 import { Location } from '@angular/common';
 import { ActivatedRoute, Router, NavigationEnd } from '@angular/router';
 import { FormBuilder, Validators, FormGroup } from '@angular/forms';
+import { map, share } from 'rxjs/operators';
+import { interval } from 'rxjs';
+import { EpisodeService } from '../service/episode.service';
+import { Episode } from '../model/episode';
 import { Theme } from '../model/theme';
-import { filter } from 'rxjs/operators';
 import { environment } from '../../environments/environment';
 import { User } from '../model/user';
 import { LoggedUserService } from '../service/logged-user.service';
@@ -17,24 +18,20 @@ import { LoggedUserService } from '../service/logged-user.service';
 })
 export class EpisodeDetailsComponent implements OnInit {
 
-  public now: Date = new Date();
   episode: Episode;
   addForm: FormGroup;
   currentUser: User;
-  editableTheme: Theme
-
+  editableTheme: Theme;
   updateForm: FormGroup;
 
+  now$ = interval(1000).pipe(map(x => new Date()), share());
+
   constructor(private formBuilder: FormBuilder,
-              private router: Router, 
-              private route: ActivatedRoute, 
+              private router: Router,
+              private route: ActivatedRoute,
               private episodeService: EpisodeService,
-              private sessionUserService: LoggedUserService, 
-              private location: Location) {
-                setInterval(() => {
-                  this.now = new Date();
-                }, 1);
-               }
+              private sessionUserService: LoggedUserService,
+              private location: Location) { }
 
   ngOnInit() {
     this.addForm = this.formBuilder.group({
diff --git a/src/app/episode-list/episode-list.component.ts b/src/app/episode-list/episode-list.component.ts
index 63a60a3..20ff0c9 100644
--- a/src/app/episode-list/episode-list.component.ts
+++ b/src/app/episode-list/episode-list.component.ts
@@ -6,6 +6,9 @@ import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 import { Location } from '@angular/common';
 import { User } from '../model/user';
 import { LoggedUserService } from '../service/logged-user.service';
+import { ConfirmationDialogComponent } from '../shared/confirmation-dialog/confirmation-dialog.component';
+import { filter, switchMapTo, take } from 'rxjs/operators';
+import { MatDialog } from '@angular/material';
 
 @Component({
   selector: 'app-episode-list',
@@ -17,12 +20,13 @@ export class EpisodeListComponent implements OnInit {
   episodes: Episode[];
   selectedEpisode: Episode;
   addForm: FormGroup;
-  currentUser: User
-  added: boolean
-  error: Object
+  currentUser: User;
+  added: boolean;
+  error: Object;
 
-  constructor(private formBuilder: FormBuilder, 
-              private router: Router, 
+  constructor(private formBuilder: FormBuilder,
+              private router: Router,
+              private dialog: MatDialog,
               private episodeService: EpisodeService,
               private sessionUserService: LoggedUserService) { }
 
@@ -34,17 +38,17 @@ export class EpisodeListComponent implements OnInit {
     this.currentUser = this.sessionUserService.getSessionUser();
 
     this.episodeService.getAllEpisodes()
-      .subscribe(data => this.episodes = data)
+      .subscribe(data => this.episodes = data);
   }
 
-  showDetails(episode: Episode){
+  showDetails(episode: Episode) {
     this.router.navigate([`episode-details/${episode.id}`]);
   }
 
   onSelect(episode: Episode): void {
     this.selectedEpisode = episode;
     this.getAllEpisodes();
-    this.showDetails(episode);  
+    this.showDetails(episode);
   }
 
   onSubmit() {
@@ -52,10 +56,10 @@ export class EpisodeListComponent implements OnInit {
       .subscribe(data => {
         this.addForm.reset();
         this.getAllEpisodes();
-        this.added = true; 
-      }, 
+        this.added = true;
+      },
       error => {
-        this.error = error
+        this.error = error;
       });
   }
 
@@ -63,14 +67,23 @@ export class EpisodeListComponent implements OnInit {
     this.router.navigate(['add-episode']);
   }
 
-  removeEpisode(episode: Episode){
-     this.episodeService.removeEpisode(episode.id).subscribe(data => {
+  removeEpisode(episode: Episode) {
+    const dialogRef = this.dialog.open(ConfirmationDialogComponent, {
+      width: '350px',
+      data: `Do you confirm the deletion of episode ${episode.name}?`
+    });
+    dialogRef.afterClosed().pipe(
+      take(1),
+      filter(Boolean),
+      switchMapTo(this.episodeService.removeEpisode(episode.id))
+    )
+     .subscribe(data => {
         this.getAllEpisodes();
      });
   }
 
   getAllEpisodes(): void {
     this.episodeService.getAllEpisodes()
-    .subscribe(data => this.episodes = data)
+      .subscribe(data => this.episodes = data);
   }
 }
diff --git a/src/app/shared/confirmation-dialog/confirmation-dialog.component.css b/src/app/shared/confirmation-dialog/confirmation-dialog.component.css
new file mode 100644
index 0000000..2261cba
--- /dev/null
+++ b/src/app/shared/confirmation-dialog/confirmation-dialog.component.css
@@ -0,0 +1,3 @@
+.mat-dialog-actions {
+  justify-content: flex-end;
+}
diff --git a/src/app/shared/confirmation-dialog/confirmation-dialog.component.html b/src/app/shared/confirmation-dialog/confirmation-dialog.component.html
new file mode 100644
index 0000000..4fe3555
--- /dev/null
+++ b/src/app/shared/confirmation-dialog/confirmation-dialog.component.html
@@ -0,0 +1,7 @@
+<div mat-dialog-content>
+  {{message}}
+</div>
+<div mat-dialog-actions>
+  <button class="btn btn-secondary" mat-button  (click)="onNoClick()">No</button>
+  <button class="btn btn-primary" mat-button [mat-dialog-close]="true" cdkFocusInitial>Yes</button>
+</div>
diff --git a/src/app/shared/confirmation-dialog/confirmation-dialog.component.spec.ts b/src/app/shared/confirmation-dialog/confirmation-dialog.component.spec.ts
new file mode 100644
index 0000000..4610829
--- /dev/null
+++ b/src/app/shared/confirmation-dialog/confirmation-dialog.component.spec.ts
@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ConfirmationDialogComponent } from './confirmation-dialog.component';
+
+describe('ConfirmationDialogComponent', () => {
+  let component: ConfirmationDialogComponent;
+  let fixture: ComponentFixture<ConfirmationDialogComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ConfirmationDialogComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ConfirmationDialogComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});
diff --git a/src/app/shared/confirmation-dialog/confirmation-dialog.component.ts b/src/app/shared/confirmation-dialog/confirmation-dialog.component.ts
new file mode 100644
index 0000000..99391b4
--- /dev/null
+++ b/src/app/shared/confirmation-dialog/confirmation-dialog.component.ts
@@ -0,0 +1,20 @@
+import { Component, Inject, OnInit } from '@angular/core';
+import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material';
+
+@Component({
+  selector: 'app-confirmation-dialog',
+  templateUrl: './confirmation-dialog.component.html',
+  styleUrls: ['./confirmation-dialog.component.css']
+})
+export class ConfirmationDialogComponent implements OnInit {
+
+  constructor(private dialogRef: MatDialogRef<ConfirmationDialogComponent>,
+              @Inject(MAT_DIALOG_DATA) public message: string) { }
+
+  ngOnInit() {
+  }
+
+  onNoClick() {
+    this.dialogRef.close(false);
+  }
+}
diff --git a/src/styles.css b/src/styles.css
index 195c191..f38c45d 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -15,4 +15,12 @@ body {
 
 .comma-list:last-child::after {
   content: "";
-}
\ No newline at end of file
+}
+
+.ng-valid[required], .ng-valid.required  {
+  border-left: 5px solid #42A948; /* green */
+}
+
+.ng-invalid.ng-touched:not(form)  {
+  border-left: 5px solid #a94442; /* red */
+}