On Monday, July 29th, ABC Family launches Summer Crush, the network's fifth annual 10-day long summer programming event filled with all-day marathons, movies and all-new episodes of its original series SWITCHED AT BIRTH, THE FOSTERS, PRETTY LITTLE LIARS, TWISTED, THE VINEYARD, MELISSA & JOEY, BABY DADDY and SPELL-MAGEDDON. Plus, the network television premieres of Prom and So Undercover and the ABC Family premiere of 17 Again.The 10-day long "Summer Crush" includes the following programming: