Brenda Ann wrote:

Channel 1 has never actually existed. It was originally a designated
television channel, but was done away with and given to other services
before television ever actually started broadcasting (48-50 MHz is VHF low
band public service frequencies (police/fire/ambulance) and cordless phones,
baby monitors and other Part 15 devices. 50-54 MHz is the Amateur 6 meter
band.

Channel-1 was part of the original Armstrong FM band.