While 'Friends' was about a 20-something population and what they were going through, they were also dealing with issues with their family.

The writers and actors on 'Friends' were notoriously particular about what made it onto the air.

NBC's pilot season of 1994 is legendary in the business. In a world where failure is commonplace, we midwifed the birth of both 'Friends' and 'ER'. While 'ER' came essentially out of the blue, we'd been casting around for a 'Friends'-like show for some time at the network.

'Friends' played in this territory of being funny, and then also just grabbing your heart. And not afraid of that. It was a comedic soap opera. Not being afraid to have an audience feel something, laugh and cry, was quite extraordinary and quite wonderful.

A 'Friends' shoot night could extend well into the small hours of the morning.

One way in which 'Friends' did resemble 'Seinfeld' is that it really found its audience over the summer of 1995 in reruns. That's when the main title song, 'I'll Be There for You', by the Rembrandts, exploded, too.