SPECIAL: Kristin Chenoweth, who won a Tony Award playing Charlie Brown’s little sister, Sally, in the Broadway revival of You’re a Good Man, Charlie Brown 16 years ago, is one of the musical performers in this new special, which celebrates the original telecast of the first Peanuts animated TV special – and that was 50 years ago, on Dec. 9, 1965. Sarah McLachlan, Boyz II Men and Pentatonix also appear, and the host is Kristen Bell (pictured), a mean vocalist herself. When I thi