How To Remove HTML Code To View Just Text

Team,
I am under going research how to delete the HTML Jargan so you are left with just the text from a website,
is this something that can be done or is it not doable I can display the text of a website but with a load of HTML as well I just want the text not the code of a webpage, Hope this makes sence.

Code to display website information on webpage,

Imports System.Net
Imports System.IO

Public Class form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox2.Text = getHTML(TextBox1.Text.ToString)
    End Sub
    Private Function getHTML(ByVal address As String) As String
        Dim RT As String = ""
        Dim WRequest As WebRequest
        Dim WResponse As WebResponse
        Dim SR As StreamReader
        WRequest = WebRequest.Create(address)
        WResponse = WRequest.GetResponse
        SR = New StreamReader(WResponse.GetResponseStream)
        RT = SR.ReadToEnd
        SR.Close()
        Return RT
    End Function
End Class

Kind Regards