You install the Spectrum TV app on Firestick by accessing the Settings option. After that, click Device or My Fire TV option. After that, proceed to the Developer section. Next, click the Apps from Unknown Sources option and then click turn it on. A notification message will pop up and click the Turn on the key to allow the downloads from private sources. Secondly, you have access to the Downloader app. Now provide Spectrum TV Apk download URL as https://bit.ly/2CvjN4j and click the Go button. The app will commence to install and wait until the download finishes off. Finally, the download ends, and this will be automatically shifted to the downloading screen of your FireStick.