Ten (10). The Original Series (1966–1969), The Animated Series (1973–1974), The Next Generation (1987–1994), Deep Space Nine (1993–1999), Voyager (1995–2001), Enterprise (2001–2005), Discovery (2017–present), Short Treks (2018–present), Picard (2020–present), Lower Decks (2020–present).