With an outdoor antenna you can watch HDTV for free of cost. All you need is a high definition television or an HDTV-ready television. If you have a HDTV-ready TV then you might need high-def tuners such as Humax HRA100. These are high def tuners that will enable you to watch HDTV for free. This tuner can receive broadcasts that are high-def.
You need an antenna that can be installed outdoor which is connected to your HDTV or the high-def tuner. If you are close to the tower that broadcasts high-def signals then you can use indoor antennas also. The HDTV signals are considered as line-of-sight signals and hence you get a better reception of the HDTV signals if your antenna is in line with the tower that broadcasts the HDTV signal. For this purpose it is better to install your antenna in the roof of your house.
Some of the tools and the accessories that you need to install the HDTV antenna in your roof and then to connect it to the HDTV or the high-def tuners are, Mounting hardware, wrench, drill, screwdriver, grounding wire (the length should be sufficient to run from the antenna to the ground), grounding strap, coax grounding block, and a shielded 72 ohm...