Some folks might not understand the correlation (or lack there off) between channels and VHF/UHF so figured I'd elaborate, FWIW.
In the old days of analog tv, channels were named after the channel they were on. I mean channel '4' was on RF channel 4 and 50 was on 50. But thats not the way it is anymore. Channel 4 is probably on channel 20-something, for example. Most all channels now, regardless of name, fall on RF channel 14-51 (the UHF DTV band - minus channel 37, channels over 52 got reallocated to something but I can't remember what). This is because with digital, a broadcast can display whatever 'name' it wants to and you TV will display that. So to keep things simple, they use the same channel names they used to but are now actually broadcasting on a different frequency.
To see this, and figure out if your local channels are VHF/UHF go to antennaweb.org and the get started button, and type in your zipcode. You'll probably want to drag the 'pin' to your actual location on the map, when I did I picked up like 8 more possible channels.
You'll get something that looks like this:
Those are all my local channels, and there true RF channel is indicated under their name. For example the first one, channel 10, is actually being broadcast now on 21 (but it still is 10 on my tv, but thats just a facade). If you look at that list you'll see every single channel is broadcasting on a different RF channel than what it used to. And while many of them used to be VHF, none of them are anymore. In fact I only have 2 channels period that are in VHF and they arent regular channels and I dont watch them.
(not my address but good for this example)
In that whole list only channels 68 and 8 are VHF and they arent ones we watch.
Low VHF (channels 2-6) are almost completely abandoned due to crappy performance and high interference on digital tv now, and they require the largest antennas anyhow. And in most areas all the popular channels are all UHF now as you can see thats thew way we are here.
[Edit forgot to add the rest...]
High VHF is (channels 7-13)
UHF is (14-69, the DTV UHF band was supposed to be 14-51 except for 37, and 52-69 were supposed to be reallocated for something other than DTV but I dont remember what)
So depending what RF channel your local channels are using, you might be able to look for a UHF only, or a UHF+high VHF antenna probably. If you need the low VHF still make sure you get an antenna that will still do that because not all of them will anymore. Also you can match up the handy color coding, like for example if I wanted to get those channels that are in violet, I need to look for antennas that are coded violet. Antennaweb also calculates the compass angle based on you pinpoint, so you can aim them easily with a compass. Beats moving it a little and going down the ladder to check each time!