"Sorta Sisters-a-Rooney" is the first episode of Season 4 of Liv and Maddie. It aired on September 23, 2016 and received 1.66 million total viewers.
Overview[]
Liv, Maddie and the rest of the Rooney family are excited to start their new life in California. As the school year begins, the Rooneys' cousin, Ruby, returns home from a summer trip. Excited to have "sort-of" siblings, Ruby can't wait to finally be a sister, but finds herself in the middle of a sister-fight between Liv and Maddie. Meanwhile, Joey and Parker attend their new science and technology school and their experience is not what they expected.