I would rate CuriosityStream 9.3 out of 10. With CuriosityStream plans, you can access a huge ocean of fresh content at an affordable price of $2.99 per month from almost all kinds of devices.
A 7-day free trial is also available with Amazon Prime Subscription.
You also get the option to speed up the playback of the CuriosityStream shows. So you can watch your favourite shows at your preferred speed. What's more exciting is that you can access the content from as many devices as you want and that too from anywhere in the world.
It also has a parental control feature in place. Moreover, watching CuriosityStream's revolutionary content in 4k quality on tv was a thrilling experience for me and my kids.
I also fell in love with its offline viewing feature. It has let me keep track of my favourite CuriosityStream shows even while traveling in areas with poor internet facilities. You can also win exciting rewards with their referral program.
CuriosityStream does not come With a DVR. Instead, it is a Video On Demand service similar to Netflix. Since it's not a live TV streaming service, you can watch CuriosityStream shows at any time.
The only complaint I have about the streaming service is the price it charges for 4k content. Its 4K annual plan is quite expensive ($69.99/per year) compared to its competitors.