Iconic TV creators

Have been a "Rockford Files" fan for many years (thanks, 7 Mate, for repeating them in broadcast order) and noted that it was another Stephen J. Cannell production. Thought I'd seen his name in many shows over the years, but didn't realise just how prodigious his output had been until more of a look.
Among others, he was responsible for The A Team, Greatest American Hero, 21 Jump Street, Santa Barbara, Wiseguy, Adam-12, The Commish, Hardcastle and McCormick and many others.
Reg Grundy was similar in Australia, especially in the game show field, with Sale of The Century, Price is Right , Blankety Blanks, Its a Knockout, Perfect Match, as well as many soaps, such as Sons and Daughters and Prisoner.
Would be interested to hear about others who have been trailblazers with TV over the years.
Among others, he was responsible for The A Team, Greatest American Hero, 21 Jump Street, Santa Barbara, Wiseguy, Adam-12, The Commish, Hardcastle and McCormick and many others.
Reg Grundy was similar in Australia, especially in the game show field, with Sale of The Century, Price is Right , Blankety Blanks, Its a Knockout, Perfect Match, as well as many soaps, such as Sons and Daughters and Prisoner.
Would be interested to hear about others who have been trailblazers with TV over the years.