Unless it has a digital tuner built in, yup, after February 17, 2009.
Not necessarily, but the antenna does need to be grounded.
The only time you will be in need of a digital converter is if you currently own an analog television that is connected to an over-the-air antenna signal.
The TV needs to be connected to something that provides the signal that you're going to watch. That can be a cable from your cable company, a satellite dish, an antenna, or just a DVD player if everything you want to watch is on DVDs.
No, most projectors do not have TV tuners. You will need to connect the antenna to a digital TV tuner, and then connect the tuner to the TV.
No, you do not need a separate HDTV antenna unless you are using the antenna to get your channels. If you have cable TV, then the antenna is not necessary.
Most smart TVs do not come with a built-in antenna; instead, they typically have a connector for an external antenna. This allows you to receive over-the-air broadcast signals. If you want to watch free local channels, you will need to purchase and connect an external antenna. Always check your TV's specifications or user manual for specific details.
No they do not.
Yes
You will need a tv antenna and a coaxial lead in wire with connectors.
Living in Los Angeles, you will not have to sign up for cable. You can get a digital converter box and a regular tv antenna and you will get enough channels.
HDTV does require an antenna. However, if you are using an antenna on your existing television there is no need to go out and purchase another. HDTV's do not require a special antenna.
To remove an old television antenna from your roof, you will need a ladder and a screw driver. You'll need to go up to the roof and unhook the antenna.