The talented creators behind the Warner Bros.’ Looney Tunes cartoons literally invented new ways to give sound to their characters. But perhaps the most famous is the Road Runner’s “Beep Beep.” (Note: There are ongoing debates online over whether the Road Runner actually says “Meep” or “Beep.” For the record, he was known as Beep Beep the Road Runner in the original comic.) Paul Julian was the man behind the bird, and he tried to imitate a car horn as the Road Runner’s calling card (another point for “Beep”). In the Road Runner’s constant quest to escape the pesky Wile E. Coyote, he beeps (or meeps) around the desert and to this day remains on the loose.
Top 10 Unforgettable TV Sounds
In addition to spawning multiple spin-offs, the crime drama Law & Order is also known for its immediately recognizable "doink doink." TIME takes a look at other unmistakable television sounds.