Most of HBO back catalogue will gone in early 2026 same with Sky Comedy, only their 'existing franchise and their future series' will remain but not exclusive, new HBO shows e.g Lanterns and Harry Potter(and most likely other new Warner Bros TV series they own internationally) will be exclusive to Max, should have called the service Warner Max.
The plan seems to be invest in original programming, Sky will be saving money from 2026.
https://www.skygroup.sky/en-gb/artic...ch-ever-on-sky