WAS WONDERING

I CAN'T REMEMBER THE NAME OF MY FAVORITE T.V. SHOW BACK IN THE LATE SIXTY'S. THE STAR WAS JACK LORD(BEFORE FIVE-O), HE ALWAYS DRESSED ALL IN BLACK, AND HE WAS A COWBOY OR RODEO OR GUNFIGHTER, I REMEMBER WATCHING IT ALL THE TIME, BUT I CAN'T REMEMBER THE NAME. ANYBODY GOT A CLUE?