Some places to find codes for a Roku include The Nowhere Man and The Streaming Advisor. StreamFREE.tv also offers a variety of codes for Roku channels.
Some codes from The Nowhere Man allow users to view videos from Khan Academy, the Internet Archive and Periscope. The Streaming Advisor offers codes for Bloomberg Television, Red Bull TV and Aereo, while StreamFREE.tv has codes for Africa Free TV, revoluTVion and Anime Classics Radio One.
To install these codes, users must log into their Roku account on a computer, and then enter the code into their account. The channels appear on the Roku home screen once entered.