1976-Gemini Man

Hello, I'm Ben Murphy and I'm Seventies Man! Back when digital watches were new and mysterious! And people wore two tone denim jackets!
Gemini Man starred Ben Murphy as secret agent Sam Casey who was injured in a diving accident which rendered him invisible. If you can suspend disbelief for that origin...you will have no problem with the rest of this series. He worked for a secret agency called INTERSECT (must be the same agency Chuck works for...or is that INTERACT?)
They stabilize his DNA to make him visible with a digital watch; if he turns off the stabilizer to be invisible more than 15 seconds a day, he'll remain invisible forever or die or something...it was lame. Gemini Man lasted 11 episodes, 2 of which were edited into TV movies and shown in syndication. One was shown on Mystery Science Theater 3000.