TV highlights: Is 'Happy Endings' over for ABC?

FINALE WATCH: "Happy Endings" (ABC at 8, 8:30) Status: unknown. In what may be a first, ABC launched its own "save this show" campaign, so this doesn't bode well for the sitcom's future as its wraps up Season 3 -- particularly as the show has been shipped to Friday nights. Anyway, in the possible series finale, we finally meet Alex and Jane's never-before-seen older sister, who is getting married.