Why would I make that up?
There's no Ding Dong in it.
The Big Bang Theory Season 1, Episode 12
How are two Ding Dongs tomorrow
gonna help me today?
The Big Bang Theory Season 1, Episode 12
One DING.
Breaking Bad Season 2, Episode 2
♪ Ring, DING, dong ♪
Breaking Bad Season 4, Episode 2
♪ Ringa-DING, DING, DING, dong ♪
Breaking Bad Season 4, Episode 2