Help getting started with Roku devices, including setup, connecting your device to your TV, linking a Roku device to your account at my.roku.com/link, adding channels, subscribing to services, and more.
I currently have the Comcast Triple Play package. I play on ditching their phone service and replacing it with Vonage. Do I have to keep their cable TV service, or will my Roku work with just have the internet?
To use a Roku device, you will simply need internet access.
However if you are using authenticated channels that you were using your Comcast TV cable service to access, you will no longer have access to those channels unless you sign in with your new TV provider.