RoyB wrote:
Also the the digtal TV signals are now only on UHF channels and no longer can you pick up any of the older VHF channels...
Good grief, not true at all, some stations that originally broadcast in either the VHF Lo or VHF Hi bands still do ... in other words their new "real" transmission channel is the same as their "virtual" channel identification. CTV network's flagship station in Toronto, Ontario is an example, has always broadcast on VHF Channel 9 and still does. While it's true that many stations that originally broadcast in the VHF band now do broadcast in the UHF band the channel can still show up on your television in it's original VHF channel position. For example, here in the Greater Toronto Area CHCH-TV which has been on the air since 1955 has always broadcast it's analogue signal on VHF Channel 11 ... after switching over to digital it's actual transmission is now on UHF Channel 15 but it still shows up on a television set as VHF Channel 11. Anyone can check their own locality for available channels
here on TV Fool.
As for a "snowy" picture that's entirely possible as there is still allowance for low power analogue transmission in some markets and in this case could be what the NTSC analogue tuner in the OP's television set is seeing. He needs to do a digital scan if he expects the set to receive any digital signals. Some sets allow you to define whether you want to scan for analogue or digital or both. Assuming the television is correctly connected to the wall plate, it's properly supplying 12 vdc power to the antenna head, and he's done a scan there's no reason it shouldn't work just fine.