How do you deactivate added channels on DISH?

The DISH Flex Pack lets you create your own package by giving you a base of 50 channels and allowing you to add themed packs such as kids channels, outdoor channels, news channels and even music channels from Sirius XM. You can add or drop channel packs at any time with the Flex pack. DISH packages such as America’s Top 120 and America’s Everything come premade, so you can’t add or drop channels from those packages, but you can add or drop extras such as the Multi-Sports pack by contacting customer support.