With a wide array of scripted series, nature documentaries, and movies, BBC America offers a first-class combo of American and British entertainment.
You can watch BBC America on Roku without cable and with a free trial on Spectrum TV Choice (for Spectrum internet users), YouTube TV, Philo, and Fubo, or you can get a subscription to Sling Blue, Sling Orange, AT&T TV, and Sling Orange + Blue.
If you already have Roku and are looking to cut the cord, there is no reason you should have to get a new device.
Here the best services that cord-cutters use to watch BBC America on Roku.