The introduction for the late US talk-show host Johnny Carson - "Here's Johnny!" has been ranked top of a poll of US TV catchphrases and quotes.
Johnny Carson died in 2005
The line, used by The Tonight Show co-host Ed McMahon for 30 years, beat Neil Armstrong's "One small step for man..." into second place.
Compiled by cable network TV Land, the list used 60 years of shows, cartoons, commercials and news programmes.
Donald Trump's curt "You're fired!" from The Apprentice came third.
1. Here's Johnny! (Ed McMahon, The Tonight Show)
2. One small step for man... (Neil Armstrong)
3. You're fired! (Donald Trump, The Apprentice)
4. Baby, you're the greatest (Ralph Kramden, The Honeymooners)
5. Ask not what your country can do for you... (John F Kennedy)
The list features catchphrases and one-liners from 10 commercials and 28 comedies ranging from Alka Seltzer to The Simpsons.
A well as the 1969 moon landing, it includes moments from televised events such as President John F Kennedy's 1961 inaugural address.
Kennedy's line "Ask not what your country can do for you - ask what you can do for your country" came in fifth place.
Larry Jones, president of TV Land, said: "We have found that television is such a huge part of baby boomers' DNA that it makes sense that so much of America's pop culture jargon comes from TV."
Carson hosted The Tonight Show from 1962 to 1992 and died in 2005.