Rockford Files (1975)
Jim Rockford: "Is this on the level? I remember getting some very strange phone calls" [00:06:40]
Throughout the series Rockford uses the expression "on the level."
Rockford Files (1975). "Claire". 31 January 1975 (Season 1, Episode 18). Directed by William Wiard, created by Stephen J. Cannell, written by Stephen J. Cannell. James Garner, Noah Beery Jr., Linda Evans, Joe Santos, Lance LeGault, Jackie Cooper, Lane Smith , M.P. Murphy, Douglas Fowley