Amazon is offering free access to some of the subscriptions channels available through Prime Video as part of its Prime Day deals. Channels such as MGM and Britobox can be tried for free for 30 days thanks to the Prime Day deal.
The offer will auto-renew at the end of the 30 days, meaning you will start to be charged a monthly subscription unless you opt out - but the deal does mean you can get access to thousands of free TV shows and films for a month.
Opting out is as simple as searching 'subscriptions' on Amazon then clicking on Your Membership & Subscriptions