Can I view my pictures and videos on my TV, if my Nokia N9 phone doesn't support HDMI?

The phone was designed with simplicity and sleekness in mind, which is why it was necessary to minimise the amount of apertures in the phone structure. This why there is no HDMI connector on the phone.

You can connect to your TV or home stereo system by using the 3.5 mm AV connector. With some TV sets you can also use the USB mass storage mode for the connection, using your phone as USB memory storage device.