Roku doesn't make the TV's; they only supply the software. You'll have to go through the manufacturer.
Where to get support for your Roku TV™ | Official Roku Support
Just like a smartphone water damage isn’t covered unless you bought insurance. But TV’s don’t have an insurance plan. Even if you got an extended warranty. Try contacting Hisense. Basically your SOL
Yikes! The joys of parenthood. You’ve already seen the bad news as others mentioned.
Unless you bought one of those add-on damage services some stores sell, it’s not a good situation.
Until you resolve that situation, if you have an old/spare TV, you could add a budget Roku device to get the streaming services back.
DBDukes
Roku Community Streaming Expert
Note: I am not a Roku employee.
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