Showtime recently aired “Quality Balls,” a documentary about the life and surprisingly controversial career of legendary comedian, director and host of Showtime’s “Inside Comedy” series, David Steinberg. Lifelong Steinberg fans Gilbert and Frank rang David up to talk about his friendships with Jack Benny and George Burns, his 140+ appearances on Johnny Carson’s “Tonight Show” and how his standup act landed him on Richard Nixon’s infamous enemies list. Also: the Smothers Brothers get hate mail! David directs Gilbert in an episode of “Mad About You”! John Candy does Doc Severinsen! David saves Tony Randall’s life! And the Mount Rushmore of Jewish comedians!