Jazz writer Gary Giddens and jazz critic/cultural historian Stanley Crouch tell one of the great stories about the rivalry between Cab Calloway and Dizzy Gillespie, both eccentric performers in their own right, when Gillespie played trumpet in Calloway’s band. Cab Calloway: Sketches premieres nationally Monday, February 27 at 10 p.m. (ET) on PBS (check local listings). In the New York metro-area the film airs Sunday, February 26 at 8 p.m. on THIRTEEN.