How to Download Comet TV App and Stream on Roku? Yes! You can watch Comet TV on Roku by downloading the Comet TV app from the Roku channel store. Choose the streaming channels option and navigate to the movies and TV section. Now, look for the Comet TV app among the available streaming channels. Choose the app and select it to download by opting for the Add channel option. Press the OK button, and this starts to download the app. Finally, once after completing the download, please get back to the Roku home screen and check it among the channel list. Or open the app and start to watch all your favorite shows and Movies. If you wish to get more information about how to watch Comet TV on Roku contact our professional expert squad using the toll free number +1-844-576-1390