What is the difference between analog tv and digital tv? How do I know which one I own?

Answer 1

Both Analog and Digital TVs at the end of the day show you an analog picture, but digital TV can process digital input signals, while analog TVs process only analog signals.

A digital TV usually has a digital TV tuner to receive digital channels (say channel 9.1).
A Digital TV has also at least one digital input, such as DVI or HDMI.