The technical adviser for the show was not Capt. Clint Peoples, but Capt. Lone Wolf Gonzales. It was based on real cases of the Texas Rangers as its predecessor Radio show. It's theme song had two choruses, the first was: He's the stalwart man of Texas, Jayce Pearson is his name. His partner Clay is right beside him, each day has proved their fame. All Texas Rangers sworn to duty, Their work is never through. They'll fight and fight for right and justice to enforce the law for you.
The second played at the ending was: These are tales of Texas Rangers, a band of study men. Always on the side of justice, They'll fight and fight again. All Texas Rangers sworn to duty Courageous, brave and True. Ever marching ever ready to enforce the law for you.
The uniforms they wore in both the "early days" and the "Modern day" episodes were never worn by actual Texas Rangers. In fact there was never any such uniform for the Rangers. My grandfather was one of the modern day and my great-great grandfather was a Captain of the Texas Troupe which was early day rangers. The badges worn on the series bore no resemblance to any ranger badge ever used. When the show was on it was a Gold DPS gold shield that was worn by rangers, the now famous circle star or wheel star came well after the show was out of production and barely at the end of my Grandfather's career.
It was embellished with a whole lot more shooting and chases than ever actually took place in cases, but it did introduce the fact that the Rangers were one of the first modern policing agencies to utilize forensic evidence to solve cases.
