You don't have to purchase a new HD TV antenna. You can purchase any type of antenna and it will work on a HDTV as well as any other television. The television is not the issue.
No such thing as a HD antenna. All antennas are the same. Your antenna should be a UHF/VHF type. Many new ones are powered to help get enough signal to the HD set.
yes. or to an inside roof antenna. You will get HD only if your antenna is tuned to a station broadcasting in digital HD, and if you TV has a digital tuner.
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.
You will need a tv antenna and a coaxial lead in wire with connectors.
Using HD TVSome satellite and cable networks do broadcast 720p HD, at this stage there are no full 1080 HD broadcasts. You need to live in an area where this service is provded and you'll need to pay a subscription fee and you will need a digital receiver with an HDMI output to your TV. Also, you can watch analog or non-HD digital programing on a HDTV. To enjoy the better resolution that HD offers, you need to get HD signals from somewere: Free HD broadcasts with an antenna, HD cable, HD satellite, HD/BluRay DVDs...
Yes, providing your TV has a HDTV tuner built in. If not, you'll need a converter box.
To receive Broadcast Television Signals of NTSC Analog or ATSC Digital a television antenna is needed. If the TV has ATSC built in , then a converter box will not be needed.
From a very good antenna or HD sat or HD cable co. converter box.
Not really. While some "HD" antennas are designed to minimize the effects of multipath reflections in large cities, there's no fundamental difference between an "HD antenna" and an "analog antenna". In a larger city where the TV transmitters are nearby and you have a good line-of-sight to them, you'll see no difference. The antenna is only used to pick up the air signal, which is on the same frequency band as old Analog TV. The only difference is the old-style analog NTSC (or PAL or SECAM) TV standard(s) used an analog carrier and the DTV ATSC standard uses a digital carrier. The whole "HD" + "Analog" antenna thing is basically hype.
If you have an older model, it may not have HD capability without adding a tuner and antenna.
To buy a HD TV antenna online, I would suggest this website http://www.homeantenna.org/ sells HD TV antennas. It provides shipping to United States or Canada.
No, I can't provide you with a TV antenna, but you can probably go to an electronics store such as Radio Shack, and they can sell you one. Old fashioned antennae are not likely to work in the US since all stations are broadcasting in HD anyway, so you might also try a store like Best Buy to get an HD antenna.