The actor also used the speech to call on the TV industry to be innovative and work harder to support new talent.
He encouraged programme-makers to “keep the flame of this revolutionary programming alive by continuing to seek out new talent, nurture it, encourage it, challenge it, give it [a] home and the kind of autonomy that the past and present - of our three Golden Ages of television - has proved it deserves”.
"We get what audiences want - they want quality. We get what the talent wants - artistic freedom. And the only way to protect talent and the quality of our work is for us to be innovative.
"We also get what the corporations want, what the studios want, what the networks want - they want to make money and we need them to be profitable so they can continue to fund high quality production," he added.
Finishing his speech on a quote from Orson Welles, Spacey said: “I hate television. I hate it as much as peanuts. But I just can’t stop eating peanuts.”