His longest-lasting TV program was "This Is Show Business", which ran on CBS from July 15, 1949 to March 9, 1954. Called "This Is Broadway" during the first four months of its run, the show mixed song, dance, and other musical entertainment, with information. Host Fadiman, celebrity guest panelists, and regular raconteurs/intellectuals Kaufman, Abe Burrows, and Sam Levenson commented on the musical performers and chatted with them. In late September 1951, "This Is Show Business" became the first regular CBS Television series to be broadcast live from coast-to-coast. The continuing need in 1950s TV for summer series to replace live variety shows likewise brought this show back in 1956 for a 12-week period (June 26 – September 11). Fadiman and Burrows returned along with new panelists Walter Slezak and actress Jacqueline Susann, the future author of "Valley of the Dolls". Susann's husband, TV executive Irving Mansfield, produced the 1956 revival for NBC television.