Sling TV began beta testing its cloud DVR option last year and started rolling it out to users in April. This month, the feature got an upgrade with an added option to protect recorded shows from being deleted.
However, there are still a number of channels that don't allow DVR recordings. Those channels are ABC, Freeform, Disney Channel, Disney XD, Disney JR, ESPN, ESPN2, ESPN3, ESPN Deportes, ESPN Goal Line, ESPN Buzzer Beater, ESPN Bases Loaded and the SEC Network as well as any on-demand only channel.
An app update released today will enable the new service on iOS devices for those with the "First Look" subscription.