San Francisco: Tech giant Apple may unveil its updated iPhones along with an Apple TV revamp at the San Francisco media event on Wednesday even as rumors run rampant about what's in store.

The trademark enigmatic invitations said a little more than the time and place of the event, which is the spacious Bill Graham Civic Auditorium near city hall. A line on the invite reading: "Hey Siri, give us a hint," led many to believe that virtual assistant software Siri, which is built into Apple devices, will help people find shows or movies on Apple TV.