C#:  Tagging an object to a listview item and retrieving  it

This page suggests the tag can be referenced  to any object

Can someone explain how to retrieve the properties of that object on selecting the listview item?

I get
Error      CS0029      Cannot implicitly convert type 'System.Windows.Forms.ListViewItem' to 'ClassName.Episode'      TVDB

sudo Code

//  build listview have accessed / created episode
............

                                    ListViewItem item = new ListViewItem();
                                    item.Text = fName;
                                    item.Tag = episode;
                                    item.SubItems.Add(newName);
                                    listView1.Items.Add(item);

        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {
            int i = listView1.SelectedIndices[0];
            string fName = listView1.Items[i].Text;

            Episode episode = listView1.Items[i];  // errors here


         }