"Humor" is extremely dependent on culture, which is heavily influenced by TV. Why does every laugh-track sitcom try to model itself on Friends? Because it has the sort of characters and humor that's relatable and funny to Americans.
Because Friends is also a global hit, and popular among a generation of teens and 20s, people who weren't born when the show first aired, you can actually learn a lot about the small things about social interactions and conversational arcs watching sitcoms, than you would sitting in a social etiquette class.
I've noticed this effect is especially strong among non-native English speakers who watched English sitcoms. Their vocabulary, cadence of speech etc
are much more natural sounding compared to others who weren't familiar with any TV shows here beyond news programs.
Yes, you can train your vocabulary and improve your foreign language skills by listening to people talking it.
I am not a comedian, so I do not know how exactly you can make yourself funnier, but I have a very strong suspicion
that you do not become funnier yourself, by just listening to canned laughter, and that the fact that fake laughter is added to comedy shows is just to make the viewers like the show more. Listening to laughter causes most people to laugh too, even if they do not understand the cause for the laughter. For example https://youtu.be/wgzdb0txR_c?t=281 . It works with other emotions also - if someone watches or listens to an angry person, they will become somewhat angry too.
Because Friends is also a global hit, and popular among a generation of teens and 20s, people who weren't born when the show first aired, you can actually learn a lot about the small things about social interactions and conversational arcs watching sitcoms, than you would sitting in a social etiquette class.
I've noticed this effect is especially strong among non-native English speakers who watched English sitcoms. Their vocabulary, cadence of speech etc are much more natural sounding compared to others who weren't familiar with any TV shows here beyond news programs.