With the change to digital, one would think that that trick would be a thing of the past, but that's not necessarily true. ATSC also includes a pilot frequency too - typically about 300 kHz up from the bottom end of the channel - 54.3 kHz or so for channel 2.
Also, there are fewer low-VHF broadcasters with the switch to digital than there used to be. Low VHF is not the best choice for ATSC because of the higher level of background electrical noise, so most broadcasters who formerly used low VHF have moved their digital transmitters to UHF instead.
There are a few high power stations on low VHF, though. Here's a list:
|Grand Junction, CO||2||KREX|
|Grand Rapids, MI||2||WOOD|
|Las Vegas, NV||2||KVVU|
|Rapid City, SD||2||KOTA|