Update doesn't support Flash Player???

Is the Flash Player no longer being supported in the Web Player?
Since upgrading to PMS Version 1.8.4.4249 / Web Version 3.20.5 - I see that there is no longer the ability to use the Flash Player.

Is there a way to use Flash Player over HTML5?

I use the channels a lot for ABC/NBC/CBS and I can only get these channels to play via the Flash Player. These channels do not work for me in HTML5.