I can only speculate, but I have seen this linked on social media dozens of times, often including that detail of "shutting down an extremely hostile senator" in the caption. So whether or not one interprets the senator as rude or hostile, people are getting exposed to that idea pretty regularly.

That isn't a justification. "I heard someone else say it" doesn't remove one's own personal accountability for saying it as well.

I imagine this is a sentiment that Mr. Rogers would agree with.

I'd have to agree, my only point was that people may think they remember having watched it a certain way simply because they read the viral headlines so many times

Not in this interaction, no.

In general, yes. The statement is to his general method of interacting with experts.

His body language and tone in the initial interaction seemed flippant for sure. Is there a longer clip?

Over the years, I've never seen a longer version. I thought CSPAN might have one, but searching for just "fred rogers" wasn't giving me any results pre-1980s. The PBS versions I've found are just the OP clip as well.

In my searches, I have seen one YouTube video that has a few seconds extra at the front[0], but I couldn't tell you if it's actually Senator Pastore screaming "shut up" or if the author sampled some random gavels and screaming, ha.

I'd love to see the full hearing just to get the context of how big of a shift Pastore really went through, but if CSPAN and PBS both don't have it, I feel it doesn't exist at this point.

[0] https://www.youtube.com/watch?v=-C5PMPIdG_Y