Well as for tv : I would say the connor family from the Roseanne Show..lol.. I remember when that show started, I swore up and down it was based on my family..lol They argued alot but they were a true family, much like my own.
As for movies: Sissy Spacek as Loretta Lynn in Coal Miners Daughter, everytime I watch that movie, I get the feeling that nothing is impossible, crazy huh?