If your TV has a digital tuner it will pick up the digital signal. If it does not have a digital tuner, you will need a converter bos.
As far as your antenna, any antenna which picks up current UHF channels (those above channel 13) should work just fine. We have had a Visio TV in our '65 Caravel
for over two years and have been enjoying digital, High Definition over the air TV using the antenna that originally came on our Caravel
Note.......The numbering scheme for digital channels is slightly different. For instance, channel 2 analog will be on channel 2-1 on digital. Some channels have several new channels, like 4-1, 4-2, 4-3 etc.