season 2 episode 19 and 20 - last episodes of the serie - one hour event - brand new sunday january 10 at 8p on Disney Channel.brAustin and Ally - Musicals and Moving On Duets and Destiny (Compilation Series Finale) END.brAustin And Ally - Musicals & Moving On AND Duets & Destiny - Promo - Series Finale.br(read title) This is the one-hour series finale.