When viewing any of my videos over four or 5 minutes it is very helpful to cast it to your TV from your phone. The following app does that very well for anyone having a Roku TV. Install it on your phone and it will guide you through the adding the app to your Roku TV.
Steps to Mirror Your Screen
Steps to Mirror Your Screen
Download the App: Install the "Screen Mirroring for Roku" app from the App Store or google play
Open the App: Launch the app on your iPhone or iPad or Android
Connect to Roku: Follow the on-screen instructions to connect to your Roku device.
Start Mirroring: Once connected, you can begin mirroring your screen. You can share:
Photos
Videos
Games
Websites
Apps
Presentations