Full Screen Video on Roku
Thanks to Michael for sending me this information.
From a windows computer, if you want to cast to your Roku and watch full screen videos, here's one way, by extending your desktop to the Roku device.
1. Click on the notification icon in the bottom right corner of your windows screen (looks like a cartoon chat bubble)
2. Click on "Project", which is meant to be read like "projector", not project, like a work project (which is how I always read it)
3. At the bottom, click on the "Connect to a wireless display"
4. Select your Roku device (perhaps another compatible device or smart television)
5. You'll be instructed to follow the on-screen instructions on the device (on my Roku it asked if I wanted to authorize the computer to use the Roku)
6. Now, move your mouse to the new display (usually it's to the right of your screen, just move your mouse off the right side of your laptop screen and it should appear on the device, if this doesn't work, try the other edges of the screen)
7. Open bassu.tv, start a video and click the full screen button in the bottom right corner of the video player (the four arrows pointing outward)