Channel 18.6 has been coming up on a scan of local TV channels.  My location is western NJ.  No picture or audio, just a dead carrier.  Frequency is 494-500 MHz.  Maybe a new channel coming soon.
By the way there's a really good array of informational videos on OTA by AntennaMan: Antenna Man - Cut The Cord
				
			By the way there's a really good array of informational videos on OTA by AntennaMan: Antenna Man - Cut The Cord