Boss Dr.Rhythm DR-110 Owner's Manual page 2

RADIO AND TELEVISION INTERFERENCE
is caused by either the other device or its 1/O cable.
Turn the TV or radio antenna until the interference stops.
Move the equipment to one side or the other of the TV or radio.
Move the equipment farther away from the TV or radio.
TV.
""How to Identify and Resolve Radio-TV Interference Probiems"