RedBox was a video rental service like Blockbuster where you could buy or rent DVDs online. Today, they have decided to become a streaming site in order to challenge the big names Amazon and Hulu by becoming a free service like Tubi and Roku that you can use on your computer. The following article gives you an idea of what you can (and can't) expect to find on Redbox:

Redbox launches an ad-supported streaming TV service (https://www.theverge.com/2020/2/14/21138485/redbox-free-live-tv-ad-supported-streaming-platform-launch-rollout)