I'm having the exact same problem. I use the play speed adjustment when watching You Tube on my other TV with AMAZON FIRE STICK and on my PC with CHROME browser but on my TCL TV with ROKU i have no speed control options. Now this just started recently. I have had this TV for a few years and have always been able to watch YOU TUBE and adjust the speed. Its only recently that the option is no longer available. I have done all the updates with no success. I even did a FACTORY DEFALT and am having the same challenge. Very frustration. I hope someone has a fix soon or YOU TUBE or ROKU fix the problem ASAP!
JWM
