I got this from support.
Cleeng Support Team (Cleeng Consumer)
Oct 29, 00:17 CEST
Hi Lloyd,
Thank you for your message about NHRA All Access.
We’re sorry to let you know, NHRA All Access will not be available on Roku for the rest of the season. NHRA is making some technology changes and will offer Roku for the 2017 season. If you would like to watch NHRA All Access on your television, we kindly suggest plugging your laptop directly into your television or use a Chromecast device which will allow you to stream from your computer.
Sorry for any inconvenience caused, and have a wonderful day.