drink coffee, sing about smelly cat and make television history. friends was produced by a parent company, warner media. now a new "friends" special, "friends forever, 25 years of laughter" looks at the scenes behind the show's success. here's a preview. >> "friends" was a monster hit in ways it's hard to imagine today. there is no half hour comedy that's ever been more successful throughout the world for 25 years. >> we were on a break! >> oh, my god. >> and what about the effect it's had on television? ♪ smelly cat, smelly cat >> everyone is watching this particular thing at the same time. it doesn't really exist anymore. so in that sense, i really see