I want to know the answer to the following question:
When did the first public HDTV broadcast happen in the US?
All the background I'm provided with is that "The American Advanced Television Systems Committee (ATSC) HDTV system had its public launch on October 29, 1998, during the live coverage of astronaut John Glenn's return mission to space on board the Space Shuttle Discovery.". Is that enough to answer the question?
Answer: no