I recall watching this sitcom on TBS back in the 80s as well as two other sitcoms Rocky Road and Down to Earth that also came on TBS. I don't remember all the characters but from what I do recall it's about a teenage girl portrayed by two different actresses(First by Martha Nix, then Katherine Britton) who leaves home to live with her much older brother who was an anchor man and dated his anchor woman Tatum. The character I really remember is Gary(Richard Steven Horvitz)the nerdy guy who was their co-worker. I thought he was the funniest character on that show. I will also like to point that the man's sister's name was not Amy. Amy was the name of her best friend portrayed by Brenda James. I remember her friend Amy was pretty funny to and a lot more entaintaining than the lead girl. It's a shame this was a forgettable series I liked pretty much.