Reba McEntire is ready to step back into the shoes of Reba Nell Hart, the wisecracking character on her long-running sitcom, Reba. The sitcom, which starred Reba, Christopher Rich, JoAnna Garcia, Steve Howey and more, aired 127 episode over six seasons from 2001 to 2007 on The WB and The CW. Like many recently rebooted…