Sister Sister - Double Trouble

Sister Sister, as well as Double Trouble, are series starring identical twins as the main characters. Author Maryam Wells who wrote Double Trouble said she was inspired by both The Patty Duke Show, Sister, Sister, and Sweet Valley High. Also, she grew up watching Mary-Kate and Ashley on TV and developed a fascination with twins.
Double Trouble was originally a TV series on NBC from 1984 to 1985. Maryam Wells turned it into a novel series about teenage twin girls getting into crazy trouble in a fictional suburban town in California 
==Similarities==
*Both starred real-life identical twins.
*Both twins' personalities were the same. Tia Landry and Jenny Healy were the smart sensible twin while Tamera Campbell and Megan Healy were the loud, outrageous twin.
*Both had plots about twins getting into trouble.
*Both targets teen and young adult audiences.
==Differences==
*Sister, Sister was a TV show, while Double Trouble was a book series.
*Tia Landry and Tamera Campbell lived in Detroit, while Megan and Jenny Healy lived in Leawood, California.
*Both Tia and Tamera were separated at birth, while the Healy twins grew up together in California.