I have a Toshiba older TV that doesn't have HD digital converter box I bought a leaf ultimate antenna do I still need to use the converter box with this new antenna

The old style TV's need a converter box. You cannot just hook up an antenna directly to the TV. The TV signal in the air is now digital. Your old style TV has an analogue TV station tuner. The converter box transforms the digital signal into a usable analogue signal. Just do a online search to find out any information that you need.

yes you will have to use it still. although the antenna is digital the TV is not. you will need the box to receive the signal.

If you have a HD TV then you do not need a converter box, however you will still need an antennae to receive the channels. the antennae can be hooked up directly to you're HD tv.

There is no difference between a "digital" and analog antenna. Either antenna will capture the signal. What you need is a digital converter box to convert the over air digital signal to the older analog type signal your TV needs. You connect the antenna to the digital converter box, and the digital converter box to the TV.
Several years ago, the US government forced peopel to buy digital converter boxes or newer TVs that could pick up the digital signal. Either get a digital converter box or a new TV.

You will need a antenna and a digital converter box to convert digital to an analog signal the TV can understand.

One way you can get free high quality digital channels is an HD antenna. In recent years, the government stopped broadcasting analog (non-HD) signals, and instead pumped out HD. They advertised their "converter box", that made it possible for people receiving their TV channels from antenna, to get HD.
If you currently have an antenna that you prefer to use, you can buy a converter box here.
But, the solution that in the end will get you more channels is a new HD antenna. They range from extremely powerful roof antenna's, to average tabletop antenna's. A roof antenna has more distance, but can be more hard to set up compared to the tabletop ones.
You can buy a variety of tabletop ones Here
Or, you can choose outdoor Here
You can learn to set it up Here
If your TV doesn't have HD capabilities ("HDTV") than you will need a converter box, which can buy at the link above ( or here.).
Hope this helped!
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The TV does need a converter box to receive digital off-the-air broadcasts. It's an HD set, but that doesn't mean digital; no digital tuner was built in. You can find the manual here at Toshiba. Hope this helps, and thanks for using Fixya!

no need of a coneverter box.

DP models are already digital there is no need of a converter box. connect a outdoor antenna to the tv directly.

Buy a hdtv antenna to autoscan program channels which should bring in a lot more then reconnect with the older antenna afterwards and if you're still not getting all the channels then each source needs a strong hdtv antenna that can be adjusted manually.