from gwyneth paltrow to sheryl lee ralph. >> when i go to see him. love to see him. when it's time to leave. bye bye. see you soon. >> committed couples opening up about the growing trend of living separately. >> living apart together. highly recommend. >> we are there for each other. in sickness and health and all that stuff. but just. we live in two different locations. >> does absence really make the heart grow fonder? and seal in the city. found in the middle of the street where it came from. and what they did to save the pup. pup. >> nightline will be♪ are you h♪ ♪ what you getting out of living? ♪ ♪ who cares for what you've got ♪ ♪ if you're not having any fun? ♪ ♪ have a little fun ♪ it ain't my dad's razor, dad. ay watch it! it's from gillettelabs. this green bar releases trapped hairs from my face... gamechanga! ...while the flexdisc contours to it. so the five blades can get virtually every hair in one stroke. for the ultimate gillette shaving experience. the best a man can get is gillettelabs. michael. george. >> ginger.ning. thank you for joining us. i'm

sheryl lee ralph: as a latchkey kid, i came home from school, locked the door behind me, and then youould watch an hour of tv. henry winkler: latchkey kids desperately search for something relatable on television. barbarino: i talked to my folks, i told them i dropped out of school, and my father said to my mother, he said 'see margie, i told you we shouldn't have had him.' pamela adlon: welcome back kotter... it's in my bones. it's in my dna. that slow, sexy... [snaps] ♪ welcome back lawrence hilton -jacobs: ♪...your dreams were your tickets out. ♪ ♪ welcome back. ♪ welcome back to that same old place that you laughed about. ♪ kotter: boy what an honor, in my class, all four marx brothers, wacko, stupo, jerko, and dumb-o. lawrence hilton-jacobs: the sweathogs were a collection of guys with a special relationship with their teacher. they were brothers and friends. barbarino: up your nose with a rubber hose. lawrence hilton-jacobs: barbarino was set up to be, you know, the sex symbol. pamela adlon: vinnie barbarino, damn. lawrence hilton-jacobs: washington is the basketball player, coo