School me on creating a channel

Can someone give me some info or point me in the right direction on creating a streaming channel and how to make it available in the Roku store? Wanting to start this hobby. The idea is to stream a channel NOT to create a on demand playlist that viewers can choose what to watch. Exactly how your typical cable channel is. I’d like to do this the legal way not to stream movies/shows I do not have permissions/rights to stream. Thanks guys