Is it free to upgrade from discovery plus, to discovery plus discovery plus premium on sky

As of my last update, the specific details regarding subscription upgrades and pricing for services like Discovery+ on Sky can vary based on promotions, regional offerings, and other factors. Typically, when a service offers an upgrade (like from Discovery+ to Discovery+ Premium), there may or may not be additional costs involved. To get the most accurate and current information, I recommend checking directly with Sky or the Discovery+ website or app. They should provide the latest details on subscription plans, any associated costs for upgrading, and any current promotions.