Almost good unless you need to rewind or move forward when watching. – Discovery GO Review

App is decent if all is working well. I understand the need for commercials but why do you keep forcing them if you fast forward or rewind? This is also an issue if the app crashes. If you want to improve user experience only display commercials after a certain amount of watch time has elapsed and not whether a user fast forwards to a later time in a show. Take a look at how YouTube does it.
Review by Zpwr2 on Discovery GO.