Lifetime Networks confirmed over the weekened it is working on a reality show featuring the relatives of deceased R&B legend Whitney Houston.  The show will feature Houstin's daughter, Bobbi Cristina, as well as her mother Crissy.  The show, titled "The Houston  Family Chronicles," will focus on Houston's sister-in-law and manager Pat, who is also caring for Bobbie Cristina.  Houston's cousin Dionne Warwick will also appear on the show.  Lifetime said the show would air before the end of the year, but did not offer an official premiere date.