To start using your services right away from your mobile device, download the My Spectrum App. To activate your new Spectrum services using a web browser, go to spectrum.net/self install. Without a wireless connection, spectrum.net activate now you can use the Spectrum TV App and other TV channel apps while on the go. Nevertheless, if you are not connected to WiFi, mobile data tariffs can be in effect. While using the Spectrum TV app away from your home, channel availability could be restricted. spectrum.net activate now