If the budget is the open question, what a TV channel costs sets out the whole bill against what a transponder or a metered platform charges. If you are already carrying a transponder lease, master control moves to the cloud first and the dish retires only when your own numbers say it has stopped earning its lease. Creators turning a back catalogue into a schedule keep the platforms and feed them from the channel rather than leaving.
Two formats are different enough to be worth their own read: a newsroom-sized news channel, where nothing in the schedule is ever locked, and a club broadcasting its own matches, where match day is the peak rather than the whole week. And when the audience spans time zones, catch-up and replay serves the viewers who missed the broadcast without running a second channel.