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.
For most people, their old antenna will work just fine. Don't let the people at the electronics store fool you, there is no such thing as an "HD antenna." There is nothing special that needs to be done to an antenna to receive HD signals. In fact, many of the antennas that are being marketed as "HD antennas" are inferior UHF-only antennas that receive a smaller set of signals than your old antenna. However, some people who were barely receiving an analog signal may need to buy a better antenna. Also, if the location of the digital transmitter has changed or the signal strength of the TV station has changed, you may need to re-aim or replace your old antenna. Simply plug the old antenna into the converter box and then plug the converter box into your old TV where the antenna used to go and you will be fine. The converter box will tune in a digital station (some digital stations are HD, some are not) and convert the digital signal into an old-fashioned analog standard definition signal and feed it into your old analog TV. You will not be able to watch shows in HD on your old analog TV, but you will be able to watch a version of the HD broadcast that has been converted into Standard Definition (SD) for you. You will be able to watch all of the digital stations including the HD ones but you will see them in Standard Definition. Standard Definition is 480i. Digital to Analog converter boxes receive all tv transmissions of 1080P , 1080i , 720P , 480P , 480i and coverts them ALL to 480i to watch on a standard definition NTSC Analog TV.