What TV series was this? It was probably later 1980s, the main characters was genetically modified or perhaps created in a lab. What I remember most clearly was his super power. Normally, "condition blue" he was smarter, faster and stronger than most humans.
But then, under a certain condition (which I think had to do with heating his brain), he went to condition yellow where his powers were dramatically increased. Finally, he could go to condition red for short periods, which was very dangerous - his brain would fry or something.
I seem to remember there were three main characters - the male lead I've just described, and a female and older male scientists.
I think it only lasted one series. It was almost certainly a US series. It was a live action series.