xfinity Stream crashes

After talking to multiple people about my Xfinity Stream crashing on my Roku TV they told me it was because I did not have a Samsung or LG television. So apparently Xfinity stream is no longer able to work on my Roku television by TCI.  However, they are still taking my money to have Xfinity Stream Beta.  Now I say, why do not tell us the app will no longer work and give us a heads up so we could cancel it instead of wasting our money????