For those who have analog TVs a simple purchase of an analog-to-digital converter can allow digital reception in the old TV. Better, old UHF and VHF antennas can also be used to receive the digital signals. There are many indoor antennas used by many households like the 'rabbit ears' which are used for the VHF bands while the 'loop' and the 'bow tie' are used for the UHF band.
To get the UHF and the VHF antennas to receive the digital TV signals make sure that the antenna used can receive both types of signals. In fact, many of the HDTV antennas considered to work best actually receive the UHF signals. If you are thinking of buying a new antenna do not miss out to check out the product reviews on which antenna should perform well.
It would also be a good idea to check out the product specifications regarding how that antenna may be able to provide the reception for both VHF and UHF channels. For those who already have indoor antennas which can receive VHF channels you may have to get an antenna amplifier or booster.
Check out the digital TV reception maps to find out what stations you can receive in your particular area. You can also find out more information regarding antennas in the Antenna Guide. Again, check out the product reviews regarding reception of VHF TV channels. This is the only way that you can make sure that you are getting the right kind of antenna which should work best for your area.