Know Your TV Detective?

Remember those TV detective programmes we used to watch back in the 70s? I certainly spent quite a lot of my teenage days in front of the goggle box and I  remember those screen detectives well. Let's see if YOU do. Just name the characters in the photo, and also the name of the TV series ...

(A)

(B)

(C)

(D)

(E)

(F)

(G)

Added Later

(H)

And what can I say? Attractive noprizes await the first person to get all correct (without Googling ... I'm gonna trust you) ...