TOS, Enterprise, and Voyager will be leaving Netflix at the end of this month. With the existence of Paramount +, I guess this was inevitable. I don't own DVDs of Voyager, so I have to use a streaming service to watch it (it's not exactly my favorite Trek series, so I don't watch it that often). AFAIK these series will stay on Hulu for now, and of course are available on Paramount +.