From 1975 to 1985 Tom worked as arranger for Saturday Night Live and from 1981 to 1985 as musical director. He wrote the chart for the skit that introduced John Belushi and Dan Aykroyd as the Blues Brothers. He appeared in the movie version and in 1993 reunited with Paul Shaffer, who worked for Saturday Night Live, and Will Lee, who was a member of the CBS Orchestra. He worked on the film score for Blues Brothers 2000. He joined the CBS Orchestra on November 1, 1993, and contributed more than 1,600 arrangements to the Late Show with David Letterman.