Love docs? This documentary streaming service is on sale for $81 off.

TL;DR: Through March 31, you can score a lifetime subscription to Curiosity Stream for only $169 — that's a 32% discount from the $250 MSRP.

It doesn't get much better than settling in for a good binge-watching session after a long hard day. There are even some health benefits to binging a series, like relaxation and decreased stress. But if you've been feeling guilty for not flexing your brain during this time, there's now a streaming service available that offers factual entertainment. 

Curiosity Stream is a high-quality non-fiction streaming service that allows you to stream thousands of educational documentaries, so you can feel productive as you kick back and relax. And you can currently score a lifetime subscription for the best price on the web, just $169, now through March 31 — saving you over $80.

This award-winning streaming service offers access to documentaries on topics ranging from history, science, and nature, which feature experts in their field like David Attenborough, Michio Kaku, and Brian Greene. And you'll have unlimited access to streaming with this lifetime subscription.

Watch shows and documentaries on your television, desktop, smartphone, or tablet, anytime and anywhere all in 1920x1080 stunning HD quality. You can even download shows to watch without an internet connection to take the learning offline.

There's new content added weekly, so there's never a shortage. Browsing titles is simple with the multiple search tools available that help you find your favorite subjects quickly. And if you rate shows as you go along, you'll receive recommendations geared toward your preferences. See something you know you'd like to watch in the future? You can bookmark shows and resume watching previously viewed shows on other devices when needed.

Enjoy a lifetime of unique, educational content with the Curiosity Stream HD Plan. A lifetime subscription is currently on sale for the lowest price online — just $169 — now through March 31.

Prices subject to change.