A geometric design broadcast by a television station so that viewers can adjust the quality of their reception.
More example sentences
- Mr. Benson and Meg sat mesmerized by the test pattern on the television.
- A couple of those shows would have failed even if they'd only been opposite a test pattern.
- An announcer uses the ‘remote carrier beam,’ another TV monitor with a test pattern, to bring the captain's ‘special agents into sharp focus.’