Related Clues:

• Radio feature
• Lump
• Door fixture
• Preamble
• Warm-up
• Microscope part
• Etch A Sketch feature
• Channel changer
• One of Chopin's 26
• Dial
• Bureau projection
• It's held during an opening
• Lead-in
• Opener, of a sort
• Contrast or volume, on an old TV